 There are three different versions of this game. The two most people are  familiar with are the PlayStation and Nintendo 64 versions. There are slight  differences between these two. The Nintendo 64 version has smoother graphics.  The PlayStation version features more and better entrance themes for  wrestlers, and there are certain cheats that will work only on the  PlayStation version (such as the old Nitro arena and "Test Tube Wrestlers").  The third version is completely different from the other two and was released  on Game Boy Color.