Keyboard:
WSAD Movement
Up arrowDown arrowLeft arrowRight arrow Movement (alt.)
Space bar Mini-turbo
Backspace Return
Mouse:
Left-Click Shooting
Mouse Wheel Pause (upwards), Unpause (downwards)
Enemies:
JayJay: Fast ships that rain death from above, the tank usually deflects most of the bullets but JayJays are numerous as well as persistent. Be careful when turning the tank's "head" near them.
Bombtruck: Suicidal truck drivers looking for the sweet release of death, be it by being shot by you or exploding their vehicles against yours.
Tips:
Click on the blue Construct icon on the title screen to submit your hi-score; Destroyed buildings may contain Horse Emblems, allowing you to spam absurd waves of equines for a few seconds just by holding the Shooting button.