Astro Zone

Astro Zone is a shooting game in which the player controls a large physical gun attached to the arcade machine that can be rotated (pitch and yaw) to fire at enemies that appear on the screen. The game has multiple phases with different enemies:

1. Spiraling monsters.
2. Humanoid monsters.
3. Stationary monsters - If the player scores 10 consecutive hits a UFO appears which, when hit, increases the value of further destroyed stationary monsters.
4. Spiraling monsters - Hitting the monsters in the correct order determines whether the sixth phase will happen or not.
5. Winged monsters.
6. Splitting monsters - Only happens if the right conditions were met in the fourth phase.

Different monsters have different behaviors and are worth different points when shot, which lead to a high score.