One of the fastest (and sometimes deadliest) bosses, Hanz is a chainsaw-wielding Nazi whose main form of attack is rushing at you with a chainsaw. He also has a pistol attack which he uses infrequently, and he summons large chainsaws from the ground around the player.
If you don't have the speed to get away, you better have the damage to take him out in time. It can be difficult to dodge his chainsaw attack effectively, as a lack of speed and room to maneuver can lead to you walking directly into them.
It is possible to jump onto his head if you have the spring, and he will be unable to attack you, and be easily beaten