Brain Gum
UNot many Cookies realize that Brain Gum spends its days chewing gum. What does Brain Gum taste like anyway? Strawberry? Cranberry? Or ■■■■? (redacted)
Companion Effects
- ★1Ally DEF +10
- ★2Ally DEF +20
- ★3Ally DEF +40
- ★4Ally DEF +65
- ★5Ally DEF +100
How to Use Brain Gum
Brain Gum is a U Pet that supports your team passively — no manual input needed. In CookieRun: Crumble, Pets are equipped alongside Cookies and apply their effect for the whole battle. The single most important decision is which team you put Brain Gum on: match the Pet's target to your lineup and it acts as a permanent buff; mismatch it and you waste a slot. The breakdown below shows exactly who Brain Gum helps.
Passive Breakdown
Brain Gum is a general-purpose Pet. Its passive works with almost any balanced team, which makes it an easy pick while your roster is still growing.
At base star grade, the passive provides: Ally DEF +10
Star Grade Growth
The passive of Brain Gum grows with star grade: +10 → +20 → +40 → +65 → +100. At max stars it reaches +100, so the Pet becomes noticeably stronger over time.
The effect of Brain Gum improves to +100 at max stars, but lower-rarity Pets are easier to replace — invest spare copies, not premium resources.
Best Cookie Partners
These Cookies benefit most from Brain Gum: Brightseeker Cookie, Oven Wanderer Cookie, Wind Archer Cookie, Cool Mint Cookie. Pairing the Pet with the right Cookies turns a small buff into a real team advantage.
Pet FAQ
What does Brain Gum do in CookieRun: Crumble?
Brain Gum is a passive support Pet. Once equipped, it grants Ally DEF +10 to the matching allies for the whole battle, and the effect grows with star grade up to +100.
Is Brain Gum a good Pet in CookieRun: Crumble?
Brain Gum is a U Pet that provides Ally DEF +10. It is worth using when its target matches your main lineup, and less valuable otherwise.
Which team should I use Brain Gum with?
Use Brain Gum with the Cookies listed above. Matching the Pet's target element or role is the single biggest factor in how much value it adds.
Should I star up Brain Gum?
Star Brain Gum when it is part of your main team — the passive grows from +10 to +100. Otherwise keep spare copies for Pets that fit better.