Clear every hostile. You are the green tank with the outlined ring.
Drive: WASD / arrows, or push the joystick up to drive, down to reverse and sideways to turn. Hold Space or Fire for the cannon.
Touch arsenal: Tap Missile, then tap or drag on the battlefield to launch and guide it. Tap Mine to drop one behind you. Tap Air raid, then tap the battlefield to confirm the strike. Tap an armed weapon again to cancel.
Missiles: 5 per operation. Mines: one active at a time. Air raid: 1 per operation, with a 3-second countdown and a visible blast radius. Stay clear: your own weapons can hit you.
Desktop specials: 1 / 2 / 3 or mouse wheel selects; click the battlefield or E deploys. Move the mouse to guide missiles. R restarts.