Cheat Instructions: 
ok so basically what you want to do is go to the corn boss then when there run forward a bit 
until the small cut scene bit occurs then run back so the boss is off screen, then with your 
bow equipped just keep shooting him as long as you don't leave any gaps between your shots 
he shouldn't move. 

Note: requires high agility so you can shoot arrows fast. 
Credits/Gamer Tag: DrowArrow