Very chaotic indeed!
The spinnig red one in the 4th level was a evil trap, but i managed to kill him after some trys.
I can see this game becoming a comercial product and, if i was you, i would take inspiration in the great art you choose, make my own sprites and put it on a store! The controls are very well polished.
Great job!
Please, if you have the time, try my game too!