Tap the D-pad to steer, FIRE to shoot, BOMB to clear the screen
Fly up an endless, procedurally generated river that gets narrower and busier the longer you survive. Steer left/right to stay off the banks, use up/down to change speed. Blast helicopters and boats for points, and fly over the purple F fuel depots to refuel — run dry and you'll crash. Shooting a fuel depot scores points but won't refill you. You get 3 lives and 2 screen-clearing bombs. How far can you get?