Brettzilla

When he comes near the gas vents shoot a a dynamite arow with the loco dynamite bow. Then you'll go to the second phase get close to a rock barricade, rotate going left and right and shoot him in the head with the furguson then he'll throw a dynamite pack go to quickdraw mode and shoot the pack after a few times you'll beat him watch the credits and if have 100% on everything you''ll get the following The Nock shotgun,bad Cannon Nock gun, badder Reeds Black Horse,superawesome!!!!,almost invincible, you can ride him as hard as you want! P.S. This answer is for you too Jaspen.