character costumes

is there only two?
i know that 1p and 2p chars have diff costumes..
but one time i saw a 1p side player using 2p costumes (??)
howed he do that? and is there only 2? id like to see some more..

 

Hold the start button to get 2P costumes on 1P sides.

There are only two costumes per character in US arcade, but in japanese arcades or on the playstation you can win new color schemes and items (sunglasses, bracelets, helmets, masks, etc.)