Home / Pet Simulator 99 / Pets / Brain
Brain
Image: Pet Simulator Wiki contributors (CC BY-SA).
| Rarity | Legendary |
|---|---|
| Class | Standard |
| Base power | 3,680,000,000 |
| Source egg | Alien UFO Egg, Space Forge Egg |
| World / zone | Tech World |
| Exists (all variants) | 137,369,374 |
Variant values (official RAP feed, pulled November 1, 2026, 16:42 UTC)
| Variant | Exists | RAP (diamonds) |
|---|---|---|
| Normal | 114,521,346 | 7 |
| Golden | 18,581,153 | 7.46K |
| Rainbow | 3,980,541 | 24.15K |
| Shiny | 236,754 | 800 |
| Golden Shiny | 37,923 | 2K |
| Rainbow Shiny | 11,657 | 5.07K |
Values are per variant, because the market prices the six forms separately and a Rainbow Shiny can be a different asset from the Normal form of the next pet up. Exists counts the copies of each exact variant sitting in player inventories, which is the supply side of the price. Its Normal variant ranks #2787 of 2,892 pets with a recorded Normal RAP. RAP moves as sales happen, so treat it as the going rate to check a listing against, not a promise: the RAP checker applies our published fair band of within 10 percent of RAP.
Hatching this pet? The egg expected value checker shows what a hatch returns on average. Full list: Pet Simulator 99 values.
Values and exists counts: the official BIG Games public API (ps99.biggamesapi.io), pulled November 1, 2026, 16:42 UTC. RAP is a recorded average of real Trading Plaza and auction sales, not a guaranteed trade price. Pet and egg facts: Pet Simulator Wiki contributors (CC BY-SA), checked November 1, 2026. eggvalues.com is a fan site and is not affiliated with BIG Games or Roblox Corporation.