This is the best boxing game on the DS, IMO. I had a lot of fun beating it when the (E) version came out. At first I thought it was too hard, but that was only until I discovered the winning strategy. Now I never lose and the game has become too easy for me. I won't tell what that strategy is so as not to ruin it for anyone interested in playing it, but it's actually a fairly simple thing once you learn it. The only hint I'll gave on this respect is that blocking has very little to do with it, and that blindly swinging away won't work either.