Arrow keys to move, and a choice of Z/X/Control as your fire button.
All 16 key combos (8 directions x 2 fire) perform some action.
Escape to return to the menu at any time.
Space to skip through any screen.
Beautiful backdrop with animated sun/sky/water.
Ragdoll physics, giving smooth physics based animations.
AI opponents.
AI gets more aggressive as the game progresses.
Cutscenes between rounds.
Screen shake and particle effects.
Sounds effects when performing actions or taking damage.
Theme music, composed with modplug tracker.