He has already solved the adult puzzle.

"Oh, the uh, radiation had corrupted some of their programming, so they were going a little nuts. They were hovering around the station in these cloud-like formations and attacking anyone who got too close. Once we figured out what the problem was, I ran 'em through a decontamination process and we haven't had any more problems since then. I've been running regular maintenance checks on them, so if any other problems come up I can stop them before they get out of hand."

See he's totally got this. Like a professional or something.