Escape from the Psycho Killer is a mini-game for mugen, you gotta make it to the truck before the killer catches up to you and kills you You can also choose to fight him but he is very hard to beat.
In order to play it, you have to download both the character and the stage and make the Psycho character as Player 2. You can also use the stage separately.
OMFG dude im falling in love wit these mini games.....i leave mugen for a couple of months and comeback to find this glorious thing T.T......lolz it damn gud XD
i did find a couple bugs tho wit the mario and phsyco killr when i do an attack that wud automatically aim at the opponent it jus fires at the sky for some reason dnt knw if i did sumthing wrong or not also wit the phsyco killer........he wont die for "ish" even without the stage......altho without the stage when i try to fight him it wont show us fighting....only the sky.....also when i fight wit the stage and no killr the characters wont face each other whn they go to opposite sides.......so far dats all i see
You can also choose to fight him but he is very hard to beat. 
