Buff Gerbils can be cleared by using Cake. Tap on Buff Gerbil on your playspace. Tap on your cake and aim the green circle around a Buff Gerbil. While the Buff Gerbil is in the green circle, tap the checkmark to clear them.

 

Clearing Buff Gerbil have a chance to drop the following items:

- Hamster Wheel

- Hair Gel