[ He's right, of course. It isn't hard to rig at all, and in all honesty for Natsume going on about the expense, it'd be a pretty cost effective pitfall to add into the funhouse as well. The most costly part of all of it is actually this room down here that they're in right now, and they clearly decided to splurge on that.

... Sort of. The skeletons look pretty cheap.

Natsume stops wading through them once he's about five feet away from Ritsu, and bends over to pick up one that looks mostly intact. ]

It's a shame two entirely normal people must have fallen for it then.

[ He's actually kind of ticked off at Ritsu implying he's normal, so he'll take a little passive aggressive dig at Ritsu in turn.

Standing up straight he holds the skeleton by the rib cage up in front of him. If he's going to get dumped into a surprise room and forced to crawl his way out then he's going to bring a souvenir with him. ]

There's no obvious dust. These must have been left here recently.