Here ya go.
What, you want a description?
Ok, ok.

This mod simply edits characters to make "challenges" out of each of them. The characters range from easy to ridiculously difficult. Most characters are very different, with the exception of The Lost, Eden, and Lilith. (If you have any ideas for Lilith let me know!)

"Challenges:"
ISAAC: Red Bomber
MAGGIE: Snail
CAIN: Glass Assassin
JUDAS: Mama's Boy in a Fez
???/BLUE BABY: Oh, Poop.
EVE: Sucky Bomber
SAMSON: Murder in Black
AZAZEL: Dark Wiz
LAZARUS: Randomite
EDEN: NO! change
THE LOST: No change
LILITH: Hit your head, did ya?
GREED: More tears; a good thing?