Skullman X
Intro A weird voice that sounds like its speaking something
Type Chaser
Signs of nearing Weird sounds
Origin Bio Menace


Map(s) Any
Theme song Onyx - Slam
Partners None
Stunnable? Yes
Skullman-X or Skullman (X Form) is a boss in Slender Fortress 2, appearing in Demon Hamster's SF2 Server.


Skullman is the first boss in the 1993 MS-DOS game "Bio Menace". A game created by Jim Norwood, then published by Apogee. Skullman's appearance consists of a giant humanoid-like figure sitting on a throne. He has legs that are skinless, showing just his bones. He has blue arms with floating blue hands with claws. His head is blue with a face with red eyes and a big blue brain. In order to damage him, the player must shoot his head. In M.U.G.E.N, two users named The_None (once known as Most_Mysterious), and Insanius (also known as aokmaniac13) ported Skullman into M.U.G.E.N. In M.U.G.E.N. Skullman now has a new form known as the "X-Form". This is basically Skullman's Offense mode, while his "Throne" mode is his Defense mode. this "X-Form" has not appeared in the Skullman boss fight in Bio Menace, only appearing in M.U.G.E.N.

In Slender FortressEdit

Skullman-X is a rather difficult chaser. He does big damage and moves pretty fast, not to mention, rather persistent. He has a blue glow which can be helpful to see him in the darkness, he can also copy himself once, which is a problem, however. He can be stunned, but it's best to use it as a last resort, as he has huge stun HP, and a low stun time. His sounds are from media, in M.U.G.E.N, those sounds have been edited to sound rather high-pitched and weird.


  • For some reason, Jofre Problem and NintendoGMOD think Skullman-X's name is actually called "Paper", even though Demon Hamster wasn't talking about Skullman-X, rather, talking about Specimen 5 boss from Spooky's House of Jumpscares. It's model is a 2D Model in SF2, which makes it look like a piece of paper is chasing a player.

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