Kick a Lucky Block Mutations Guide (18 Mutations, Update 8 Block Cup)

All 9 regular Kick a Lucky Block mutations & their multipliers

Regular mutations can drop from any kick regardless of which event (if any) is active. Drop chance depends on your kick power, perfect kick bonus, global luck events, and the Mutation Luck gamepass. Astral (50×) is the only regular mutation restricted to a specific zone — you must reach Eternal or Eternal+ to encounter it.

Regular mutation multipliers sourced from bloxron.com (June 2026) cross-referenced with Pro Game Guides (May 23, 2026). Rainbow confirmed at 40× as of Update 7 (some May sources reported 30× — 40× is the current value). Astral 50× confirmed by bloxron.com (June 2026). Drop chances for Shadow/Electrified/Rainbow are community estimates — developer has not published official percentages. Only one mutation can apply per Brainrot; there is no stacking inside a single roll.

All 9 event mutations — Block Cup, Volcanic, Heavenly, Phantom and more

Event mutations are only obtainable during specific server events — triggered by the Weather Machine, Block Cup event, or server voting. They are not part of the regular kick RNG pool. The highest available event mutation as of June 2026 is Block Cup (38×), available through July 11, 2026.

Event mutation multipliers sourced from bloxron.com (June 2026) and Eldorado.gg update log (June 23, 2026). Phantom nerf (x35→x25) confirmed by bloxron.com. Block Cup mutation (x38) confirmed by Eldorado.gg Update 8 entry. Drop chances are community-estimated — not developer-published. Event availability dates are tracked as of June 23, 2026.

New in Update 7 and Update 8: Astral 50×, Heavenly 32×, Block Cup 38×

Three major mutation additions arrived in Updates 7 and 8 (June 2026) that reshape the meta:

• Astral (50×) — Update 7 (Jun 6). The highest regular (non-event) mutation in the game. Only available in Eternal and Eternal+ zones. To farm Astral, you need enough Kick Power to consistently reach the Eternal zone — the game's top two rarity tiers. Bloxron.com lists Astral as the "#1 meta" as of Update 7, dethroning Rainbow. Zone-restricted means it is unavailable to early-game players.
• Heavenly (32×) — Update 7 (Jun 6). A server-voted event mutation with a 3% transform chance. During the Heavenly Event, kicking a lucky block has a 3% chance to produce a Heavenly lucky block instead, which guarantees a Heavenly mutation on the resulting Brainrot. Server voting determines which Weather Machine event fires — Heavenly competes with Void, Flood, UFO, Witch, and Bacon events for server preference.
• Block Cup (38×) — Update 8 (Jun 13). The highest event multiplier in the game during the Block Cup period. Obtainable by participating in the Block Cup event (runs every 2 hours in-server) and collecting balls. The Block Cup event ends July 11, 2026 — after that date, Block Cup mutations cannot be newly obtained.

These four additions bring the total documented Kick a Lucky Block mutations from 8 to 12. All four are currently single-source (Pro Game Guides only) — no second independent outlet has published matching multipliers. Treat the 10x, 22x, and 30x figures as likely correct but awaiting cross-confirmation. The drop chances for all four remain unpublished (TBA).

Brainrot list and tier-list searches

Searches for a Kick a Lucky Block brainrot list or Kick a Lucky Block tier list often land here because mutations are the multiplier layer players care about most. The important boundary: this page verifies mutation tiers and multipliers, not a complete per-character Brainrot roster or cash-per-second list.

The public sources we trust still do not publish a complete Kick a Lucky Block-specific Brainrot roster tied to game ID 89469502395769. We keep the Italian Brainrot meme reference art on the Brainrot Cast page, and we keep the earnings advice here focused on systems we can source: zone quality, mutation multiplier, rebirth multiplier, and whether you actually claim the roll before the tsunami. Do not copy a character tier list from Be a Lucky Block or another Roblox game into Kick a Lucky Block without game-specific proof.

How Kick a Lucky Block mutations actually trigger

When you kick the Lucky Block, the game performs the rarity roll for the Brainrot first, then a mutation roll on top. Five known levers raise the odds of the second roll landing on a mutated outcome:

1. Perfect kicks. Hitting a clean kick (the in-game timing window) grants a small luck boost on that roll. Treat it as a small but free edge — not a strategy in itself.
2. Global luck events. The server periodically announces a luck event with a 2×, 4× or 8× mutation chance multiplier for everyone in the server, lasting around five minutes. When one fires, drop everything and kick as much as your stamina allows.
3. Mutation Luck gamepass. A 139 Robux gamepass that permanently doubles your mutation chance. Three independent guides — Pro Game Guides, AllThings.How and Sportskeeda — all quote 139 Robux as of 2026-05-01. An older TechWiser snapshot listed 349 Robux, but the consensus across newer sources is 139 Robux. See the game passes page for the full pass effect and our take on whether it's worth the spend.
4. Higher Kick Power. Stronger kicks reach rarer zones, which roll rarer Brainrots; mutations stack on top of those rolls, so a Radioactive on a high-rarity Brainrot is dramatically more valuable than a Radioactive on a Common.
5. Run Speed. Faster legs save more rolls from the tsunami — every Brainrot you actually claim is a Brainrot whose mutation can earn for you.

Kick a Lucky Block luck boosts stack multiplicatively

One detail worth its own paragraph: the public guides agree these luck multipliers multiply each other rather than replace each other. TechWiser's mutations article (re-verified 2026-04-27) puts it bluntly: "All three stack together, giving you the highest practical odds of landing a high-tier mutation." A Perfect Kick during an active 4× global luck event while you own the Mutation Luck gamepass means all three multipliers compound on the same roll. The same logic applies to the small Perfect-Kick bonus on top of an event — every active source contributes.

Update 1 through Update 5: the full mutation timeline

The April 27, 2026 patch (Update 1) introduced Void and Shadow mutations on top of the original five-tier ladder. A subsequent guide update by Pro Game Guides (May 2, 2026) first published confirmed multipliers for Shadow (12×) and two additional tiers — Electrified (16×) and Rainbow (30×) — bringing the count to eight. The same Update 1 patch added a Celestial rarity tier and a Meteor variant of the Lucky Block.

Update 5 (mid-May 2026, first documented by Pro Game Guides on May 23) added four more mutations: Virus (10×), Void (10× — previously announced in Update 1 but unpublished), Alien (22×), and Bacon (30×). The full 12-tier ladder documented above is current as of June 14, 2026. Read the full patch timeline on the updates log.

Drop chances for Kick a Lucky Block mutations

The developer has not published official drop rates. The approximate chances in the table above are based on Pro Game Guides' May 23, 2026 update, which is the most detailed public breakdown available. To summarise: common-tier mutations (Gold, Diamond) appear frequently during a normal play session; mid-tier Kick a Lucky Block mutations (Plasma, Molten, Radioactive) require meaningful grind time; the high-tier mutations (Shadow, Electrified, Rainbow) are endgame rolls — Rainbow at 1-in-20,000 is effectively a lucky-streak event. The four newest entries (Virus, Void, Alien, Bacon) have no published drop chances at all — we list them as TBA until a source publishes an estimate. If a developer post or datamine publishes exact probabilities, we will update the table and note the source.

Mutation earning calculation — how multipliers translate to income

Understanding mutation value requires seeing the math in action. The examples below use a simplified base income of 1,000 cash per second from a placed Brainrot to illustrate how multipliers compound. Real in-game numbers are higher — especially in Godly+ zones where base Brainrot income is in the millions per second — but the proportional relationships are the same.

• No mutation (1,000/s base). 1,000/s × 1 = 1,000/s. This is your baseline — every mutation tier improves on this.
• Gold (1.5×). 1,000 × 1.5 = 1,500/s. A 50% boost — modest but frequent (approximately 1 in 10 kicks). Over an hour of play, the cumulative effect is meaningful.
• Plasma (4×). 1,000 × 4 = 4,000/s. A 300% boost — this is where mutation income becomes noticeable. Roughly 1 in 33 kicks.
• Radioactive (8×). 1,000 × 8 = 8,000/s. A 700% boost — endgame-viable. Roughly 1 in 333 kicks. Combined with a Godly-zone Brainrot, this is the threshold where single Brainrot income exceeds your entire early-game plot.
• Rainbow (30×). 1,000 × 30 = 30,000/s. A 2,900% boost — the theoretical ceiling for documented mutations. At 1 in 20,000 kicks, it is rare enough that many players will never see one. On a Celestial-zone Brainrot with stacked rebirth multipliers, a single Rainbow roll can produce more income than an entire inventory of unmutated Brainrots.

The takeaway: mutation multiplier × zone base income × rebirth multiplier = effective income. Each system multiplies the others, which is why progressing all three simultaneously (rather than maxing one at the expense of the others) is the dominant long-term strategy.

Expected kicks per mutation tier — what the probabilities mean in practice

Drop chances in Kick a Lucky Block are expressed as "approximately 1 in X kicks." These are community estimates — not developer-published data — but they give a useful sense of how much grinding each tier requires. Here is what those numbers translate to in a typical play session:

Approximate chances are community estimates from Pro Game Guides (May 2026). "Typical session" assumes ~60 kicks in 30 minutes — your actual rate depends on kick speed, tsunami survival, and server conditions. The four Update 5 mutations (Virus, Void, Alien, Bacon) have no published drop chances and are excluded from this table. Expected kicks are the statistical average — in practice, you may go much longer or shorter between any given mutation roll.

Kick a Lucky Block mutations strategy by progression stage

Early game (Common → Rare zones)

• Don't change your routine to chase mutations. Volume of kicks > mutation hunting.
• If a global luck event fires, that is your cue to spam kicks for five minutes.
• Keep upgrading Run Speed so you don't lose the rare mutated rolls you do get.

Mid game (Epic → Mythic zones)

• Diamond / Plasma start landing more frequently because you spend more total time in the world; place mutated Brainrots first when plot space is tight.
• Consider the Mutation Luck pass once you can comfortably play 30 minutes per day; the doubled chance compounds nicely with your zone tier.

Late game (Godly → Hacked zones)

• Replace plot Brainrots aggressively. A Radioactive Godly out-earns ten older Diamond Rares. At the highest end, an Alien (22×) or Rainbow/Bacon (30×) on a Hacked or OG Brainrot is a run-defining roll.
• Time your kicks around global luck events — that is where the per-hour income spikes happen.
• Stack rebirth multipliers on top of mutation multipliers for the steepest curve.
• The four Update 5 mutations (Virus, Void, Alien, Bacon) have no published drop chances — they may be rarer or more common than their position in the table suggests. Treat them as bonus rolls, not farming targets, until drop rate data emerges.

Mutation farming tactics — how to maximise your mutation rolls

Farming mutations is not about targeting a specific tier — drop chances are too low for that to be practical outside of global luck events. Instead, effective mutation farming means maximising the total number of mutation rolls you survive to claim, and stacking every available luck booster on every kick. Here are the tactics that move the needle:

1. Survive more kicks. Every Brainrot lost to the tsunami is a mutation roll you never see. Run Speed is not a convenience stat — it is a mutation farming stat. Players who invest consistently in Speed see more mutation rolls per hour simply because they claim more kicks.
2. Stack luck boosters. The three confirmed luck boosters — Perfect Kick timing, global luck events, and the Mutation Luck gamepass — multiply each other rather than replacing each other. A Perfect Kick during a 4× global luck event with the Mutation Luck pass active means all three multipliers apply to the same roll. This is the highest practical mutation odds you can achieve outside of developer-triggered events.
3. Prioritise volume over quality in low zones. In Common through Epic zones, mutation quality matters less than mutation quantity. The Brainrot base values are too low for a Diamond vs. Gold mutation to make a noticeable difference. Kick as frequently as possible, place everything, and push weights to reach higher zones where mutations pay off.
4. Prioritise quality over volume in high zones. Once you reach Godly or higher, the calculus flips. A single Radioactive Godly Brainrot out-earns ten Gold Common Brainrots. At this stage, be selective about which rolls you keep — if a mutation lands on a high-rarity Brainrot, it is worth protecting with extra Speed investment.
5. Never sacrifice your best mutated Brainrots to the Weather Machine. The Weather Machine feature (documented by Pro Game Guides and FindingDulcinea, mid-2026) lets players sacrifice duplicate Brainrots for temporary server-wide effects. Sacrifice weak duplicates only — your highest-multiplier mutated Brainrots are irreplaceable income engines.
6. Time your rebirths around mutation inventory. Rebirthing resets your Kick Power but not your placed Brainrots. Before rebirthing, bank at least one high-tier mutated Brainrot on your plot so your post-rebirth income starts strong. A Radioactive or better mutation on a Godly+ Brainrot is the best possible pre-rebirth insurance.

Weather Machine events & event-only mutations in Kick a Lucky Block

Multiple independent third-party guides (Pro Game Guides, FindingDulcinea, Eldorado.gg, u7buy) have documented a Weather Machine feature added to Kick a Lucky Block around Update 3 (May 2026). The Weather Machine allows players to sacrifice duplicate Brainrots to trigger temporary server-wide events that boost mutation odds, introduce event-only mutations, or increase earnings rates for a set duration.

Important source boundary: the Weather Machine mechanics described below are community-documented, not developer-confirmed. Multiple independent sources agree on the broad feature and event types, but exact recipes, drop rates, and durations vary between sources and may change between updates. Treat the event descriptions below as directional — the core feature is real, but individual numbers should be verified in-game.

Confirmed Weather Machine event types

The following event types have been documented by at least two independent third-party sources:

All event rates and durations above are community estimates from third-party guide sites — not developer-published data. Treat as directional only. The Bacon, Alien, Void, and Phantom events specifically boost the chance of those named mutations during the event window, above and beyond the standard drop rates.

Event-only mutations: Cyber (11×) and Phantom (25×)

Two mutations documented by third-party sources do not appear in the standard 12-tier ladder and are believed to be event-only — meaning they cannot roll through normal kicks and only become available during specific Weather Machine events:

• Cyber (11×). Reported by community sources as a limited-time mutation with an approximate drop rate under 0.3%. Believed to be event-only — it does not appear in the standard mutation ladder published by Pro Game Guides (May 23, 2026). Exact trigger conditions are unconfirmed. Treated as low-confidence until cross-confirmed by a second independent guide.
• Phantom (25×). Reported by multiple third-party guides (Eldorado.gg, u7buy, ggwtb.com) as a Weather Machine event-only mutation. At 25×, it sits between Alien (22×) and Rainbow/Bacon (30×) — the strongest non-jackpot mutation tier in the game. The Phantom Event reportedly requires sacrificing Celestial-rarity Brainrots to activate, making it a late-game investment. Treat as community-documented, not developer-confirmed.

Why these are not in the main mutation table: Cyber and Phantom have not been published by Pro Game Guides (our primary mutation source) as of the May 23, 2026 update. Their existence, multipliers, and trigger conditions are all single-source or community-documented only. We list them here for completeness but do not include them in the verified 12-tier ladder above. If a second independent source or an in-game capture confirms either mutation, we will promote it to the main table with a source note.

Weather Machine strategy — when to use it and what to sacrifice

The Weather Machine turns duplicate Brainrots from trash into temporary server-wide luck. Here is what the third-party guides agree on for effective use:

• Never sacrifice your best mutated Brainrots. A Radioactive Godly Brainrot on your plot earns passive income indefinitely. Sacrificing it for a 10-minute event is almost never worth it — you would need to land an equal or better mutation during the event just to break even.
• Sacrifice weak duplicates only. Common and Rare Brainrots that you have already placed copies of are ideal Weather Machine fuel. Their individual income is low, and converting them into a server-wide luck boost benefits every player on the server — including you.
• Early game: prioritise Flood or Enchanted events. These events require cheaper sacrifices (according to community sources) and offer broad mutation chance boosts rather than targeting a single high-rarity mutation. In early zones where volume matters more than quality, a 10–18% global boost is more valuable than a 5% chance at a specific top-tier mutation.
• Late game: Bacon and Phantom events for maximum upside. Once you are in Godly or higher zones, a single Bacon (30×) or Phantom (25×) mutation on a high-rarity Brainrot is a run-defining roll. The sacrifice cost is higher (community sources report Celestial-rarity Brainrots for Phantom), but the payoff justifies the investment.
• Coordinate with server population. Weather Machine events affect the entire server. If other players are also kicking during your event, the collective mutation output is higher — and the server-wide income boost from mutations benefits everyone. Coordinate in chat or watch for other players before activating an expensive event.

The Weather Machine is one of the least-documented systems in Kick a Lucky Block from an official source perspective — no developer has confirmed the feature, published recipes, or stated event durations. All strategy above is community-compiled and should be treated as evolving. Re-check the updates log for Weather Machine changes when new patches drop.

Weather Machine summoning recipes — what each event costs

Eldorado.gg (June 2026) published the most detailed public breakdown of Weather Machine summoning costs to date. Each event requires sacrificing four specific Brainrots — the Brainrots are permanently removed from your collection when you summon. The rarity of the required Brainrots scales with the event's reward tier: cheaper events use Mythic–Hacked Brainrots, while the highest-tier events demand multiple Celestial-rarity sacrifices.

Recipes sourced from Eldorado.gg (June 2026) — single-source community data, not developer-confirmed. Recipe requirements may change between updates. The Witch (Enchanted) and UFO (Alien) events are reportedly locked behind the Admin Abuse event and have no published recipe at this time. Phantom is the most expensive event to summon by a wide margin — four Celestial Brainrots for a 3% drop chance on a 25× mutation is an endgame-only investment. Chasing Phantom too early is one of the most common Weather Machine mistakes according to community guides.

Weather Machine strategy by game stage

The right Weather Machine event to chase depends on where you are in progression — summoning Phantom with your only four Celestial Brainrots in the mid-game is a fast way to lose months of collection progress for a single 10-minute window. Here is the stage-by-stage recommendation compiled from Eldorado.gg, u7buy, and ggwtb.com:

Stage recommendations are compiled from community guides (Eldorado.gg, u7buy, ggwtb.com) and are directional only — not developer-published strategy. The Witch (Enchanted) and UFO (Alien) events are excluded from this table because they are currently locked behind the Admin Abuse event and cannot be summoned through the standard Weather Machine interface. If these events become available after a future update, re-check community sources for updated recipes and strategy.

Duplicate Brainrot management — what to keep, what to feed to the Weather Machine

The Weather Machine fundamentally changes the economics of duplicate Brainrots. Before the Weather Machine existed, every duplicate was a sell-or-keep decision based solely on plot space. Now, duplicates are also potential event fuel — and the decision of whether to sell, keep, or sacrifice a duplicate is one of the most frequent judgment calls in mid-to-late-game Kick a Lucky Block. Here is the decision framework compiled from Pro Game Guides, FindingDulcinea, and Eldorado.gg:

1. Your single best copy of every Brainrot stays on your plot. This rule overrides everything else. The Weather Machine takes duplicates only — never sacrifice the highest-multiplier copy of any Brainrot you own, because its passive income is permanent and the event window is temporary.
2. High-rarity duplicates (Mythic and above): save for Weather Machine events. A duplicate Godly or Secret Brainrot is worth far more as event fuel than its sell price. The cash from selling a Godly duplicate buys a fraction of a weight tier; using it to summon a Flood or Bacon event can produce multiple mutated Brainrots across the server.
3. Mid-rarity duplicates (Epic–Legendary): situational. If you are saving for a specific event recipe (e.g., the Void event requires two Godly and one Epic), hold the duplicates. If you are far from affording the other required sacrifices, sell them and reinvest in weights — cash now beats event fuel you cannot use yet.
4. Low-rarity duplicates (Common–Rare): sell or use as disposable triggers. Common duplicates sell for very little and are easy to replace. They are ideal for testing the Weather Machine interface or triggering cheap events, but their individual income contribution is negligible — do not hoard Common duplicates hoping for a use case that hasn't arrived.
5. Check the Weather Machine before every selling session. Before you liquidate a batch of duplicates for cash, open the Weather Machine menu and check the current recipe requirements. If you are one Brainrot away from affording a Flood or Void summon, holding the duplicates for one more kick cycle is the correct play.
6. Never sacrifice for an event you cannot farm. If you summon a 10-minute event but only have time for 2–3 kicks (low Speed, poor zone access, or about to log off), you have wasted the sacrifice. Only summon when you can commit to actively kicking for the full event duration at the highest zone you can reach.

Block Cup event (June 13–July 11, 2026) — how to farm the x38 mutation

The Block Cup event is the biggest event in Kick a Lucky Block history as of June 2026. Here is everything documented about how it works and how to maximize your mutation output during the event window:

How the Block Cup event works

1. Join a team. On entering the game during the Block Cup period, choose one of three teams: James, Miki, or Shon. Teams compete on a shared leaderboard. Your team choice does not restrict which mutations you can get — it only affects leaderboard placement.
2. Wait for the Ball event. The Block Cup event fires every 2 hours in-server. During the event window, balls spawn in the game world.
3. Collect balls by kicking lucky blocks. Kicking a lucky block during the event can produce balls in addition to the usual brainrot. Collect as many balls as possible.
4. Return balls to the safe zone. Carrying balls back to your plot area converts them into Goals — the Block Cup event currency.
5. Spend Goals in the event shop. Goals can be exchanged for limited brainrots (Hat Tricky: 5,000 Goals / 175% income; Goat: 15,000 Goals / 200% income), potions, and exclusive kick styles.
6. Farm the Block Cup mutation (38×). The Block Cup mutation drops during the event window from ball-associated kicks. The exact drop mechanics are community-documented — treat the 38× multiplier as confirmed (Eldorado.gg), but note that the precise Goals cost or event trigger mechanic for the mutation itself is not developer-published.

Ball upgrades — permanent enhancements

Ball upgrade details sourced from Eldorado.gg (Update 8, June 13, 2026). Ball upgrade costs in Goals are not published — prices may change in Update 9/10. All ball upgrades are permanent and carry over after the event ends.

Update 7–8 meta summary — what changed for mutation farming

• Astral (50×) is now the primary late-game farming target for regular mutations. If you can reach Eternal/Eternal+ zones consistently, farm for Astral rather than Rainbow (40×) — the 10× gap is significant.
• Phantom was nerfed (x35→x25). If you spent Celestial brainrots summoning Phantom events expecting x35, the nerf to x25 affects your ROI. The sacrifice recipe has not changed — four Celestial brainrots are still required for Phantom, but the payout dropped.
• Rainbow is no longer the top regular mutation. Rainbow is confirmed at 40× as of Update 7, not 30× as reported by some May 2026 guides. But Astral (50×) now outranks it. Rainbow still requires approximately 1-in-20,000 base chance and remains a significant drop — just no longer the ceiling.
• Block Cup (38×) is the best event mutation farming opportunity in June 2026. Unlike Volcanic (35×) which requires active event window timing with the Weather Machine, Block Cup fires every 2 hours on a predictable schedule. For players with limited play sessions, Block Cup is more farmable than Volcanic or Heavenly events.