Play as Keith 
Enter Prince as a first name and Darkness as a 
last name to play as Vampire Keith with only a powered-up 
stun glove and some punch moves.

Hidden graphics 
Enter Yuka as a first name and Kobayashi as a 
last name. Get to the computer at the second or further save 
point to view actress Yuka Kobayashi, from whom Misato was 
based on. Two pictures will appear at each save point after 
the second one.