It's decently polished, but a lot of things are missing that were the factors that made Punch-Out great mainly the very distinct clarity regarding whether an opponent can be hit or not, clarity on whether you can keep attacking or not, and even the fact that blocking or dodging locks you out of other actions. Honestly though, the original Tyson fight is pretty BS as well, so it's not like you aren't being faithful. Also it's a minor gripe but not including the TKO system is a really a big oversight.