Valis III (Genesis)
At $3472 in the Japanese ROM is a menu that allows you to choose between "Game" and "Visual"; sadly, both options seem to just go into the game. 530:4E71, 532:4EB8, and 534:3472 jump into this menu after pressing Start on the title screen (it replaces the Map Select check and jump).
At the title screen, hold A+B+C+Up, then press Start. Release all but Start as soon as the screen fades to black to make the level select appear.
Music Test (Japanese version only)
At the title screen, hold A+B+C, then press Start. Press Up and Down to choose the track to play, and A plays it.
Sound Effect Test (Japanese version only)
At the title screen, hold B+Down+Right, then press Start. The controls are the same as the music test.
|The Valis series|
|MSX||Mugen Senshi Valis|
|MSX2||Mugen Senshi Valis II|
|NES||Valis: The Fantastic Soldier|
|Sharp X68000||Mugen Senshi Valis II|
|Genesis||Valis III • Valis: The Fantasm Soldier (Prototype)|
|SNES||Super Valis IV|
|TurboGrafx-CD||Mugen Senshi Valis: The Legend of a Fantasm Soldier • Valis II • Valis III • Valis IV|