Clue mode:
Type Akces at the "1) Player 2) Players Q)uit" screen. 

Enable background colors:
Type ifokvision at the "1) Player 2) Players Q)uit" 
screen. 

Exit game:
Press [Esc] during game play. 

Hidden options:
Type IKE at the "1) Player 2) Players Q)uit" screen. 
Sound, access to Poison, and clue mode options will 
become available. 

Play as Poison:
Type Poison at the "1) Player 2) Players Q)uit" 
screen. 

Random select:
Press [Tab] when selecting a character. 

Jump up and left five spaces:
Press the special jump button, 2442, and the special
jump button again during game play.