I have some ideas about the game. I hope you will accept them and then establish
1) damage to parietal parts of skull should be reduced (if it possible to do in the game engine) I mean top of the head especially with jabs ( jab overall should be nerfed. It oneshots a lot or does really significant damage)
2) There should be bots with different AI difficulties (Novice/Amature/Pro)
Extra ideas
1) body strikes should exaust opponent
2) leaps (to make leaping left hook for example)
3) map with punching bag
4) skins
thanks for attention