Brain Gum is a Rare Pet of Zombie Cookie. It can make the energy of the user go slower and give an amount of Energy back after colliding with an obstacle. Zombie Cookie is a Rare Cookie that revives after Energy runs out. Amount of Revival Energy increases with Level Up. It's a Cookie that was underbaked and slopped carelessly with strawberry jam and melted chocolate. Game cursor with Cookie Run Brain Gum and Zombie Cookie.