Rubber Duck Defense

Quack quack quack. Quack quack. Quack quack quack quack. Quack quack quack QUACK!

Quack quack quack. QUACK-QUACK-QUACK! Quack-quack, quack quack quack. Quack quack.

QUACK!!!

Tower Defense with a twist: play as the attacker. Quack 'em all!