Hey there! This is a fantastic project! With some minor improvements, I can see it doing quite well!
My feedback:
- It needs some indications where the enemies are, I spent some time wandering without knowing what to do
- It isn't clear the ammunition
- It barely matters if you move up or down, you can always hit the enemies
- Kills multiplied by 5 is strange, either change that for score or do a 1x1
- It would be nice to have a shop to purchase improvements for the character before the match.
Are you still developing it?