Wow, this was a really cool game! I disagree with Keniak1G9, being able to move with WASD would make the game worse in my opinion. I loved clicking on the other side of the screen and then throwing shurikens at all the enemies that chased me. Is there any way to win or is it endless? If it is endless I would like to know your highscore so I can try to beat it. My highscore is 106.
If you want to expand on the game you could always add more enemies(the wizard was my favourite). You could also try to make some story and have story missions beside the endless mode. I presume that you did everything in the game yourself and I like that. We used a lot of assets in our game but I prefer doing everything myself because its just feels like it really is your game then. Goodluck in the competition!