To beat Gutsman start off by shooting him when he raises his arms or jumps in the air. If he is in the air shoot him with battle chips then you wont hurt you when he hits the ground. Shoot him with battle chips if his arms go up or jump off the ground so you dont get hurt when he shoots a shockwave through the ground. If he gets close to you try to jump over him or slash him with a sword a couple of times.