Leak Stopper

''Tired of having that one bloon that leaks and ruins your perfect game, or takes away your last life? Well, you won't have to worry about that any more."

Leak Stopper is a Premium Upgrade costing 75 NK coins. When enabled, any bloons that make it past the range of all towers on screen will get shot with a 10px wide bloonsday device laser, doing 7 damage to any bloons touching it, and popping any bloon property besides invincible. (If a tower's range is touching the end of the track, the laser will zap any bloons that get to the end.) The laser will shoot once every six seconds if multiple bloons make it past the player's defences, so it won't do much if hordes of bloons are rushing past. The laser lasts 0.1 seconds before it dissapears.