So I finally managed to give this game a try.
I like the combos when pressing multiple punch or kick attacks.
The fight animations are well done and the UI is simple but works well. Nice work!
I also have some improvement suggestions:
- Jumping feels very "floaty". Maybe increase the gravity a bit?
- It's possible to "stand" on top of the opponent after jumping LOL.
- The first punch feels a bit slow. The animation could be slightly faster.
- It would be nice to be able to "air combo" after the opponent is launched into the air (after an explosion)
- The BGM does not loop cleanly. It seems there's a silence at the loop point.
- Add logarithmic calculation to the volume sliders to fix the low sensitivity on the low end and high sensitivity on the high end.
- UI does not scale properly on an ultrawide monitor
- Add a SFX to UI interactions to provide player feedback
- Consider adding keyboard navigation to the UI. It feels a bit awkward to have to use the mouse when most of the game is played with the keyboard.
Regarding online multiplayer, make sure your game architecture has been designed to separate the server and client components from the beginning. Otherwise it will be very painful to make the change later.
Good game! I hope you keep updating it! :D