If you’ve been grinding Roblox’s Plants vs Brainrots, you already know the plants aren’t your only key to success – the Brainrots matter just as much. These quirky zombie-like creatures don’t just challenge you in battle; once captured, they can generate passive income for your base. Want to know which ones to keep, how rarities work, and what mutations mean? This guide breaks down everything you need to know about all Brainrots in Plants vs Brainrots.

What Are Brainrots in Plants vs Brainrots?

Brainrots are enemies you fight during matches, but after defeating them, you can store them in your base. Unlike plants, Brainrots don’t attack for you; instead, they produce cash over time. The stronger the Brainrot’s rarity, weight, or mutation, the more money you’ll earn. Think of them as your idle income generators while you’re offline or grinding elsewhere.

Brainrot Rarities

Not every Brainrot is built the same. The game uses a rarity system to keep things exciting:

• Common & Rare – Basic income, but great for starting out.
• Epic & Legendary – More difficult to find, but excellent cash producers.
• Mythic & Godly – Extremely rare, high-tier Brainrots that can transform your base’s income stream.

Guaranteed Drops:

• Every 100 spawns guarantees at least one Legendary Brainrot.
• Every 500 spawns guarantees a Mythic Brainrot.

So even if your luck is terrible, you’re never completely locked out of progress.

Brainrots can also spawn with mutations which multiply their income rate.

Fusing Brainrots

Once you unlock the Fuse Machine (usually after a rebirth), you can merge a plant + a Brainrot to create hybrids. These fusions:

• Provide stronger base income,
• Replace the original creatures (they’re consumed),
• And do not keep any mutations from the originals.

Fusions are key to late-game progress, so keep an eye out for recipes.