Buy Roblox Steal a Brainrot Rainbow Brainrots
Rainbow-mutation brainrots for Roblox Steal a Brainrot at a 10x income rate, handed over in a live in-game trade.
Rainbow is the rarest mutation roll in Roblox Steal a Brainrot: the game's own table gives it a weight of 0.2 against Gold's 7, and it adds 9 to a unit's income modifier, so a Rainbow unit runs at ten times its base generation. This shelf carries Rainbow Index Base, Rainbow Capitano Moby, Rainbow Eviledon and the Rainbow Spaghetti Tualetti line.
Stock check: every Rainbow listing on this page is sold out right now, so none of them can be bought today. The list stays up so you can see what we carry and what it costs, every listing below takes a one-email restock alert on its own page, and restocks are announced in our Discord.
Every Rainbow listing on PetMart
Rainbow La Grande Combinasion — $1.00 (out of stock)
Rainbow Spaghetti Tualetti — $14.99 (out of stock)
Rainbow Money Money Puggy — $2.99 (out of stock)
Rainbow Esok Sekolah — $1.00 (out of stock)
Rainbow La Ginger Sekolah — $5.50 (out of stock)
Rainbow Los 67 — $5.00 (out of stock)
Rainbow Ketchuru and Musturu — $3.00 (out of stock)
Rainbow Garama and Madundung — $4.00 (out of stock)
Rainbow Burguro and Fryuro — $6.00 (out of stock)
Rainbow Eviledon — $7.00 (out of stock)
Rainbow La Taco Combinasion — $5.99 (out of stock)
Rainbow Capitano Moby — $8.00 (out of stock)
Rainbow To to to Sahur (Bubblegum + Claws) — $1.00 (out of stock)
Rainbow Los Nooo My Hotspotsitos — $3.50 (out of stock)
Rainbow Chipso and Queso — $6.00 (out of stock)
Rainbow Index Base — $49.99 (out of stock)
How these are delivered
Rainbow units are handed over in an in-game trade. A private Discord ticket opens on your order, you give us the Roblox username, and a PetMart staff member sends you the trade to accept in Steal a Brainrot. The Rainbow finish is unmistakable in the trade window, which is the check worth making before you accept — Rainbow and Divine share the same modifier but not the same look or the same rarity. We never ask for your Roblox password. The completed trade is photographed and the photo is attached to your order page.
More PetMart categories
- Mutations — Steal a Brainrot
- Secrets — Steal a Brainrot
- Traits — Steal a Brainrot
- Divine — Steal a Brainrot
- Cursed — Steal a Brainrot
All Steal a Brainrot items · Proof of delivery · How it works