Sousei no Aquarion Episode 4

This ep, the commander teaches the kids something abt standing. They gather in the running track where he orders everyone to take off their shoes - be barefooted. Off course some aren't happy, and so the commander teaches them that there is something wrong with the way they stand. In a funny way of course. And then the shadow angels come again. This time, they use a technique that cancels out the gravitational field which causes Aquarion to lose balance and fall. Again and again. But soon, Apollo figured out what the commander was trying to tell them...