While this episode wasn’t as absurdly amazing as the third episode, it was still quite entertaining and humorous. I’m surprised that it managed to accomplish the totally random enabling of UNION again like it did in the previous one (lol @ the mecha itself showing an empty stomach in the status diagrams) without feeling repetitive. Kamina rejecting attempted UNION because Simon wasn’t doing it AWESOMELY enough was pretty amusing.

On the other hand, I tend not to like it when shows introduce named characters in an episode and then just ditch them, and that seems to be the case here for those four siblings riding strange animals.  Even so, such a simplistic show still being this fun to watch four episodes in is a promising sign.