There are two versions of this game. The first printing of this game had an error. Strider 1 was printed as Strider 2 cd art. Strider 2 was Strider 1 cd art. They realized this and quickly reprinted with the fix. I dunno how much the one with the error is but I doubt much since its not exactly in demand right now. Its just cool to have i guess...good conversation piece... "yeah this game was all f--ked up from capcom and I have one of the rare versions of this game..blah blah".
Yeah teh version I have is like that, its kind of funny when Im really tired, Ill put the wrong disc in. Also I noticed that if I hold Triangle down, strider will do this infinite slash thing on strider 1.