All Become a Brainrot Brainrots
Brainrots are collectible meme units that generate passive Cash on your base. Each has a Rarity tier, base Cash per second, and optional Mutation or Trait modifiers. This list helps you decide which units to steal during guard sleep windows and which to upgrade first after placement.
How Brainrots enter your collection
Unlike Steal a Brainrot’s conveyor, you obtain Brainrots by completing steal runs: disguise, placement on an enemy base, wait for sleep, grab a unit, return to lobby, claim, and place on your plot. Group rewards may grant an Epic unit. Events can temporarily boost Mutation odds.
Income and upgrades
After placement, use per-slot upgrade buttons to raise Cash/s. Higher Rarity units cost more to upgrade but scale better under Rebirth multipliers. Compare numbers on our Tier List before sacrificing a slot to a low earner.
Using this list
Cross-reference Rarity Tiers for spawn location rules, the Tier List for priority, and Mutations guide for multiplier stacking. Patch notes can rename units or rebalance Cash/s—treat exact numbers as community estimates until you verify in your session.
| Brainrot | Rarity | Tier | Cash/s | Notes |
|---|---|---|---|---|
| Noobini Pizzanini | Common | D | 5 | Starter-tier income |
| Tim Cheese | Common | D | 8 | — |
| Fluriflura | Common | C | 12 | — |
| Trippi Troppi | Rare | C | 45 | — |
| Cappuccino Assassino | Epic | B | 180 | — |
| Burbaloni Loliloli | Legendary | B | 850 | — |
| Sigma Boy | Legendary | A | 1,200 | — |
| Frigo Camelo | Mythic | A | 4,500 | — |
| Cocofanto Elefanto | Mythic | A | 8,500 | — |
| Dragon Cannelloni | Secret | S | 25,000 | — |
| Strawberry Elephant | Secret | S | 45,000 | Top-tier distant-base target |
| Griffin | Secret | S | 38,000 | — |
Frequently Asked Questions
How many Brainrots exist in Become a Brainrot?
The roster grows with updates; our table tracks documented units and expands after patches.
Can one Brainrot have multiple Mutations?
Typically one Mutation plus one Trait maximum per unit in similar Brainrot stealth games.
Do I lose Brainrots on Rebirth?
In comparable mechanics, Brainrots stay while Speed and Cash reset—confirm in the Rebirth menu before confirming.
What is the starter Brainrot?
Early steals yield Common-tier units like Noobini Pizzanini or Tim Cheese on nearby bases.