Controls over main charachter are confusing, the tutorial is missing, upgrades make absolutely no sense (no visual or gameplay feedback) and don't feel right. Only one thing is pretty - graphics. The graphics in the game are really great.
I will give advice for the future, it is very important to play your game, play your game at each stage of development. It will be a big plus to let your friends / colleagues play your game and get feedback from them on what needs to be improved. Good luck with your future projects!