The boss battle is pretty straightforward. Start by running and jumping along the ground floor to reach the helmet and pick it up with Y. Continue around behind the boss to a set of stairs to ascend. At the top, pull the three levers with X while on the action space. Finally, return to the start, either via the way you came or by jumping and hovering down from the upper platform, to activate the action space with X. The boss only has two attacks: The tail swipe along a section of the ground floor or stairs, easily avoided by jumping, or a bite attack that destroys part of the upper platform, avoided by backtracking or staying on the far side of the platform.