It is the 33rd century, and humanity has been subjugated by a supercomputer named GCS-WT since 3,000 AD. Hoping to strike back against mankind’s mechanical overlords, Dr. Edwin Deace has developed a silver-white craft named Sol-Deace — and it’s up to you, your navigator Eric and your cannon commander Misao to take it into battle and liberate the Earth.

Cheats:
Invulnerability
On the options menu enable the the level skip and the ninety-nine lives cheat, while the mode says my99, hold down a and keep pressing right until the word „muteki” appears
Invulnerability Hold a and keep pressing right until the word „muteki” appears

Level Skip
To skip levels while you are playing, enter the ninety-nine lives and level select code. Then hit A, B and C during gameplay to skip a level.

Ninety-nine lives and Level Select
To obtain ninety-nine lives and execute level select, press the following sequence at the title screen, A, B, C, A, B, C, B, C, B, A, then start. This will take you to configuration mode, where you can use the cursor to select any level you want. If you move it to mode, push right until ”MY99” appears for 99 lives.