Marshmallow Hamster
Unranked — awaiting verified dataSSR pet
Verified as of ·Patch launchEffects
Dark Ally CRIT DMG +14%
Applies only while this pet is one of your three equipped companions.
Support Cookie CRIT RES 0.20%
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
Marshmallow Hamster's effects name Dark and Support. That matters because a targeted buff only pays out on cookies that match: 12 of the 71 cookies we track are Dark, the smallest element cohort we track and 16 are Support.
How many pets compete for the same slot
12 of the other 53 pets also buff Dark and Support, so this is a contested niche — you have alternatives if you do not own this one.
CRIT DMG effect
9 of the 54 pets we track lead with a CRIT DMG effect.
Both effects, two different rules
The Companion effect (Dark Ally CRIT DMG +14%) applies only while this pet is one of your three equipped companions. The Ownership effect (Support Cookie CRIT RES 0.20%) 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 Marshmallow Hamster do in Cookie Run: Crumble?
Companion effect (while equipped): Dark Ally CRIT DMG +14%. Ownership effect (while owned): Support Cookie CRIT RES 0.20%.
What rarity is Marshmallow Hamster?
Marshmallow Hamster is one of 23 SSR 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
Other SSR pets
Ally Resistance Rate +5%
Ally Range Synergy +20%, Receiving Ally ATK +5%
Ranged Ally Accuracy Rate +10%
Light Ally CRIT DMG +14%
Tank Ally Evasion Rate +10%
Support Ally Focus Rate +10%