I love the idea of using the needle as a weapon. That's pretty creative. The art is nice but I wish there were animations and the player wouldn't just be a white cube. The sounds and the music are good. The game left me wanting more which is a good sign that I had fun.
Two Bugs I encountered:
The music doesn't loop. You can fix this by checking 'loop' on the AudioSource Component.
The rotation of the needle goes crazy when you move it slowly or move the pointer on it. But I wouldn't know how to fix that