Bio-Hazard Battle

Cheat Codes:
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Submitted by: David K

Dragon-Bio 5 Ship:
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Highlight the ship in the top left corner of the ship selection 
screen and press A + B + Start. 
Note: This code may only be enabled in the 1990 version of the game.


Fly Same Ship:
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Highlight the "2 Player" option at the main menu, hold Right and press 
Start. Release Start after the ship selection screen is displayed. The
ship in the top right should be selected for each player.


Select Level:
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When the Sega logo appears, press and hold the C button. While still 
holding the C button, ''sweep'' the D-Pad in a clockwise direction 
starting at up and doing a full circle around it. 
You should hear a noise confirming the code and then you have to press
start so you can select what level you wish to proceed to.


Unlimited Lives:
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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.


Bonus Level:
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Locate the caves immediately following the opponents that resmble a 
pair of lips. Move to the top left corner to lose the current ship 
and restart in a level consisting of a large asteroid field.