Syvalion (SNES)

Syvalion
Developer: Taito Publishers: Toshiba EMI (JP), JVC Music (EU) Platform: SNES Released in JP: July 24, 1992 Released in EU: 1993 This game has debugging material. This game has a hidden sound test. This game has a hidden level select.

Hidden Options

At the title screen, press A, B, X, Y, Start. A menu with difficulty level, lives count, bonus point toggle, and sound test options will appear. This code only works in the Japanese version.

Debug Menu

At the title screen, press A, B, Up, Down, Left, Right, Start. A menu with difficulty level, lives count, weapon toggle, boss select, game type, level select, and (non-functional) sound test options will appear. This code only works in the Japanese version.

(Source: super-famicom.jp)