Spriteswap

A  is a M.U.G.E.N. character that steels another character's exact coding, except with different sprites. So basically I have a Spiderman Mugen character, and then I have a spriteswap of said character. The spriteswap will contain the EXACT same moves, normally pulled off the EXACT same way, with the EXACT same effects as well. In a lot of spriteswaps, you can even see the sprites of the original Mugen character in some of its animations.

Examples of a Spriteswap

 * Warner's original Wario was a spriteswap of Big Eli King.
 * Many of Shazzo's characters are a spriteswap of Capcom VS SNK Style Axel Stone by Actarus.
 * Big Glitchy Retarded Omega Tiger Woods is a spriteswap of Claymizer's Chansey.
 * Bingo the Chao is a spriteswap of Spiderman

Also Note-Worthy
Kung Fu Man, being the first MUGEN character ever and the character that comes with MUGEN, is generally one of the most common bases for sprite-swaps.