Bouncy Shots

Bouncy Shots is a constant 2-star powerup in Bloons Supermonkey 2 Mobile.
 * 1) Your weapon's projectiles will bounce back when they fly out of view.
 * 2) Projectiles bounce 1 more time
 * 3) Projectiles bounce 2 more times
 * 4) Projectiles bounce 3 more times