I have been trying to remember this game for years and for the life of me I can't. I've looked under listing of games and spent hours looking on the internet or places that sell old games. The game can only be on the NES SNES or Sega I know the main character is female and her color is split in half, one side has a bat wing and she was purple I think, the other side had (could be wrong) an angelic wing and was pink. The wings are on her hat by the way. If you keep shooting your energy the power and rate of fire begins to decrees. I also know the shop you could go to in game sold a white color, and maybe one other color. One of the first bosses you fight is just a big revolver that follows you around and shoots one of two different color energy shots. At a much later level in the beginning you can go left or right and depending on the path you pick a serpent type monster with a head on each end eats you, the rest of the level involves you traversing the inside of this (lets call it a dragon) till you exit the other end. I know later on one of the bosses you fight transforms into a werewolf. The last thing I remember is during the credits you could play as a few of the characters from the game, at least most of the bosses, including a male character that for the life of me I can't remember how he was important (ends up turning good I believe but the reasons are lost to me)