In addition to normal on-contact damage, the Psycho may rush the player at high speed.
Before the Psycho attacks the player would see the Psycho hidden in the dark and when the player shoots it or gets too close to the Psycho it will jump out of the dark holding out its knife while running at full speed. It also has a laughing sound effect every time it gets hit.
- A reference to the main villain of the 1978 horror film, Halloween, which was inspired by Alfred Hitchcock's film, Psycho .
- Psycho has a closer resemblance Jason Voorhees from the Friday the Thirteenth film series.
- Added to the game.