Looking for a long lost game

when i was a kid my cousin came to my house (kind of a rare thing b/c he lives so far away)he had a game w/ him that he rented before he came down. i had never heard of it before and it was simply amazing. it was a platformer. in it you played as a kid w/ little horns. and as usual you were trying to beat some big bad guy boss. i remember it was based in a theme park and that you could get a power up that made 7 after images of you wich you could swing and use as a weapon. sorry i dont have more details but thats about all i can remember. also it may be on sega genesis. ( i came to that conclusion after i downloaded 885 nes games and it wasnt in there). im pretty sure its on nes ...so any ideas? thanx.


**edit** oh yeah and its not Doki Doki Amusement park.

Lol, I don't know what it is but "Jersey Devil" comes to mind.

thanx ill try that..doesnt sound quite right to me though.