RedEye King

As if the giant RedEye enemies that you fought out side weren't though enough, the RedEye King is challenging, hard, and surprising. Take a full barrel and walk to (don't step on yet) a panel that triggers a electric gate, wait for the RedEye King to come in to view and right when he's almost done roaring, step on the panel. If done right, you stop him in place and get a chance quickly run up and throw the barrel at his head. Be very careful, the giant beast my turn corner of the hallway arena and appear in front of you while your running away from him.