Countdown Vampires - Various codes


  Play as Vampire 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. 

  Super Keith:
  Enter Burger as a first name and Chicky as a last name to play as Keith 
  with unlimited health and ammunition. 

  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. 

  Alternate ending sequence:
  Allow Geils to kill you to view an alternate ending. 

  Special mode:
  Successfully complete the game in under seven hours to unlock special 
  mode. 

  Blood type and vampires:
  Selecting a blood type (A, B, O, or AB) at the start of the game will have 
  an effect on the type and difficulty of the vampires that will be 
  encountered during the game.