Brain Gum is an A-grade pet in LINE and a Rare Pet in OvenBreak. It accompanies Zombie Cookie as their combo Pet.


(LINE) Slows down Energy drain.

(OvenBreak) Energy drains slower and recovers slight bit of Energy after collision. Level Up to increase Skill.


(LINE) Blows fantastic bubbles and improves Cookie's IQ to enable them to use up Energy slower.

(OvenBreak) Don't be misled by the size of Brain Gum. Despite being small, it's jam-packed with intelligence and flavor. Besides, size is not an issue, as long as it's big enough to blow a good bubble. Energy drains slower when running with this Pet.

Strategy (LINE) Edit

Brain Gum is widely considered the best A-grade Pet. It is an ideal pet for players who want to run for a long time (such as when farming for Mystery Boxes, but lack certain Potion-producing S-grade pets. It is currently one of three Pets that slow down Energy drain, the others being Green Apple Rabbit, and Uncooling Teacup.

LINE StatisticsEdit

Level Skill Effect Upgrade Cost
1 8% slower N/A
2 9% slower 17,000
3 10% slower 20,000
4 11% slower 23,000
5 12% slower 26,000
6 13% slower 29,000
7 14% slower 35,000
8 15% slower 42,000

Oven Break Statistics Edit

Level Skill Upgrade




1 Energy drains 9.0% slower

Recovers 10% Energy after collision

2 Energy drains 9.3% slower

Recovers 10.5% Energy after collision

Coin 001 1,600 Escape Level 4
3 Energy drains 9.6% slower

Recovers 11% Energy after collision

Coin 001 3,200 Escape Level 8
4 Energy drains 9.9% slower

Recovers 11.5% Energy after collision

Coin 001 8,000 Escape Level 20
5 Energy drains 10.2% slower

Recovers 12% Energy after collision

Coin 001 16,000 Escape Level 40
6 Energy drains 10.5% slower

Recovers 12.5% Energy after collision

Coin 001 32,000 Escape Level 80
7 Energy drains 10.8% slower

Recovers 13% Energy after collision

Coin 001 64,000 Escape Level 160
8 Energy drains 11.1% slower

Recovers 13.5% Energy after collision

Coin 001 120,000 Escape Level 300
9 Energy drains ___% slower

Recovers __% Energy after collision

Coin 001 120,000 Escape Level 300
10 Energy drains 11.7% slower

Recovers 14.5% Energy after collision

Coin 001 Escape Level
11 Energy drains 12.0% slower

Recovers 15% Energy after collision

Coin 001 Escape Level

Possible Combination Bonus Edit

Cookie Combi Bonus
Zombie Cookie
Zombie Cookie (A) LINE: 10 extra Energy when reviving as a Zombie / OB: +15 Energy Bonus

Updates Edit


  • Brain Gum used to help drain energy 10-32% slower, but this was modified December 18, 2014 with the New World update, making the pet inferior to Green Apple Rabbit.
  • Brain Gum can be spotted in-game in Stage 2, encased in a glass jar.
  • Its combo with Zombie Cookie likely alludes to zombies' affinity for eating brains in popular culture.
  • It used to be a combi for Cream Cookie.
  • In LINE, maxing out the pet will give you A Piece of Brain Gum as a reward.