Aim: drag from your tank toward where you want to shoot. The direction sets the angle and the length sets the power. Or use the − / + buttons. The dots show the start of your shot.
Wind (top) pushes every shot. On the Moon there is no air, so no wind, but gravity is low.
Move with ◀ ▶ (uses fuel). Ground blown out from under a tank makes it fall and take damage. Lava burns.
Fire with the big button. Shield and Repair Kit are free actions: use them, then still take your shot.
Keys: ← → angle, ↑ ↓ power (hold Shift for fine), A / D move, Space fire, Q / E or Tab change weapon, W weapon list, M map view, P pause.
Controller: L-stick or D-pad ← → angle, ↑ ↓ power · L1 R1 move · ✕ fire · ○ □ change weapon · △ weapon list · SELECT map view · START pause.
Campaign: win for 1 star, keep half your HP for 2, win quickly for 3. Blitz: no turns. Reload, fire and keep moving as waves of tanks parachute in. Boss Rush: four giant bosses in a row; your HP carries over with a small repair between fights.
Supply crates: green gives a weapon, red repairs 30 HP, orange fills your fuel, purple makes your next 2 shots hit 50% harder. Drive onto a crate or blow it open.
Hand the device over, then tap Ready.