Resident Evil Zero features two main characters: Rebecca, a rookie police officer from Raccoon City who first appeared in the original Resident Evil, and Billy, a framed convict on the run.
This new system allows players to follow the adventure of both characters successively using the "Zapping" ability.
This ability enables players to switch between the two main characters in the blink of an eye.
If one of the characters runs out of health, the game is over. More details about this revolutionary system are to follow.