Survive. Enemies come for your mech on the beat: red tiles show where they'll hit, one dot per beat left.
Bump an enemy to hit it and push it one tile: into buildings, mountains, fuel tanks, water or each other. A pushed enemy still attacks the same way, from its new spot. Bump buildings, mountains and fuel tanks to break them (tanks blow up!).
Swipe / arrows / WASD: move & bump · Tap / Space: shockwave