Wake Up Potion

 is an item that can drop out of any bloon at least twice the speed of a red bloon. It can only be used on Sleeping Bloons, which wakes them up, but stops them from regenerating. These bloons can escape when woken up, however, and will take as many lives as they had hits left to pop. This cannot be used on the Overpowered Sleeping Bloon in the Don't Let Sleeping Bloons Lie mission.