I think it is a bit lacking, the hitbox are too large, the timer doesn't pop up properly (I didn't see one when I played through). The control are ok, but it is really repetitive and it just feels so slow...
The sprite for the character is badly chosen, you seem to have a weapon but you cannot attack...
As a sidenote : don't use filter on your pixel art sprite (disable it) otherwise they look blurry in game. And sound effect is as important as music, even a simple walking sound would do the job, coupled with some animation it would really the game pop up and more lively without changing much