The following are known Action Replay Codes for BioMetal on Super Nintendo (SNES).
These codes are for the U.S. version of the game.
Lives Modifier
7E029D??
Points Modifier
7E027F??
7E0281??
Ship Power Modifier
7E02B1??
Score Modifier
7E027F??
7E0280??
You can go any where
Go to the Title Screen and hold the A and buttons. Press diagonally Up/Right, then Down/Left. Press Select and the L or R button, and you can go wherever you want to.