Summary
A classic Sega shoot-em-up where you pilot your ship through three distinct zones, dodging various dangers along the way. Your main tools are bullets for both offense and defense. However, if you fire at the blinking red sections of the terrain, a green ship may appear. Collecting these ships upgrades your weaponry, replacing your standard fire with a powerful laser beam. The more ships you gather, the more powerful you become, eventually allowing you to fire up to three laser beams simultaneously.
Each zone ends with a boss that requires several hits to defeat. After conquering all three, you return to the starting point. The objective of the game is to accumulate as many points as possible while avoiding the loss of all your lives.