Brain Gum
Unranked — awaiting verified dataU pet
Verified as of ·Patch launchEffects
Ally DEF +10
Applies only while this pet is one of your three equipped companions.
Charge Cookie DEF +8
Applies whenever you own this pet, even in storage.
Tier rating
Unranked — awaiting verified data. We rank a pet only once we can state why. Why →
Analysis
Computed from our dataset — recalculated on every build, so it stays true as the data changes.
Who this can buff
Brain Gum's effects name Charge. That matters because a targeted buff only pays out on cookies that match: 20 are Charge.
How many pets compete for the same slot
11 of the other 53 pets also buff Charge, so this is a contested niche — you have alternatives if you do not own this one.
DEF effect
Brain Gum is the only pet in our data whose headline effect is DEF, which makes it hard to substitute.
Both effects, two different rules
The Companion effect (Ally DEF +10) applies only while this pet is one of your three equipped companions. The Ownership effect (Charge Cookie DEF +8) applies from the moment you own it, equipped or not — which is why pulling a pet you never equip is still worth something.
Frequently asked
What does Brain Gum do in Cookie Run: Crumble?
Companion effect (while equipped): Ally DEF +10. Ownership effect (while owned): Charge Cookie DEF +8.
What rarity is Brain Gum?
Brain Gum is one of 6 U pets among the 54 we track.
Sources
Single source — treat with caution
Artwork © Devsisters Corp. Used for identification and commentary.
- Pocket Gamer — pets list — retrieved 2026-08-26
