Castlevania: Skel's Revenge
Original title: Castlevania
Platform: Nintendo Entertainment System
Region: USA (Update Hacks)
Media: Cartridge
Controller: NES Gamepad
Genre: Platformer 
Gametype: Hack
Players: 1
Hacked by: Redrum
_________________________
A hack of the original Castlevania game by Redrum featuring a playable Skeleton and redesigned levels. 

http://castlevania.wikia.com/wiki/Castlevania:_Skel%27s_Revenge