Defense System Showdown

1 Player Mode:

Up / Down Arrow Keys / Mouse - Move Cannon.
Left / Right Arrow Keys - Move Selection.
Z / Left Mouse Click - Shoot.
X - Activate Powerup.

2 Player Mode:

Player 1.
W, S - Move Cannon.
A, D - Move Selection.
J Shoot.
K - Powerup.

Player 2.
Mouse - Move Cannon / Shoot.
Left / Right Arrow Keys - Move Selection.
Down Arrow Key - Powerup.