An early shoot-em-up, somewhat similar to the first stage of Atari's later Star Wars game.

You are the tail gunner of a retreating spaceship, with enemies in pursuit. They circle in waves and charge, and you must maneuver your gunsight to blast 'em before they hit your ship. Activate your shields to deflect incoming ships, but this depletes your shield, and taking direct hits can be rather painful...

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