Ready 2 Rumble Boxing is a cartoon style boxing beat 'em up with plenty of strange looking characters to choose from and beat the hell out of them. You can train your character up to the best of his/her ability and then fight the best in the world for the championship belt.
This game was released twice! Four games released by Midway back when they first started making Dreamcast games had several errors, which were fixed in subsequent pressings. How do you tell if you have a fixed copy? The cover should should say "Hot! New!", the disc is slightly different, and the UPC may also be different. The other games that were released as Hot! New! versions were Mortal Kombat Gold, Hydro Thunder, and NFL Blitz 2000.