Hi, I'm confused, where's the file?
I think you can only fight the "first" (it's pretty great that the opponent is taken from different ones with their own stats and behaviour) opponent in the released version? I don't think trying to "exit" the shop does anything.
The game sounds and looks great (although the scaling in my 1920x1080 makes it blurry), the different attack animations are very nice and as the game plays pretty much like Punch Out then it's quite fun as well.