Saws (Bullethead)

 are hazards in Bullethead. They are black saws that move around the edges of the screen.

Attack
The Black Saws will come out of the top left part of the screen. They will move fast around the edges. When coming out of the side of the screen, they will come in groups of 5. They will not destroy other enemies by touching them. If they go past the ground, the player is sure to get unless they destroy at least 2 of them. The easiest way to destroy them is to go to the right side of the screen and repeatedly shoot. They can be destroyed pretty easily this way.