Here are some cheats and tips for the game Bio-Hazard Battle.
Level Select:
When the Sega logo appears, press and hold the C button. While still holding the C button, move the
D-Pad in a clockwise direction starting at up and doing a full circle around it. A noise will confirm
correct code entry, then press start.
Unlimited Lives:
Enable the ‘”Level Select” code. Highlight the last level on the level select screen and press
A + B + C + Left. Then press A + B + C + Left again when the screen fades.