WASD or arrow keys to fly. Hold Space to fire. B or Enter drops a bomb. F releases flares and is the sure answer to a missile lock. Shift or E triggers overdrive. P or Escape pauses, and Q stands down. On touch, drag to fly and use the on-screen buttons. Skim close to enemy fire to charge overdrive. Destroy ground targets for upgrades. Only finishing all five stages posts a score to the leaderboard.

Tap the dialogue to continue. At key moments, choose the words Leah could not say. Optional details can be noticed without affecting score. Every path returns to the diner and earns the same completion score.