Imo the underlying concepts works. Probably the enemies could move or fight back. Animations would also be pretty neat as well, but considering the fact that you worked alone I think it is well done!  

Game is bugy since am a beginner at coding but am hoping to improve soon!Sorry about boss he is glitchy

Pretty fun little game! Maybe make it twin stick?

The boss ran away! And my shuriken's stopped spawning after I spammed spacebar. Neat little game, like Ninjaxim said, it has potential!

Quite simple, but has potential. I liked how the boss threw minions at me instead of a weapon.