Some kids like belly time. Other kids are Aldus.

So far, on the belly time is 5 seconds of "hmm, what have we here," plus 10 seconds of "this is interesting... and unpleasant," followed by "NO MORE or else i will reveal that my lungs go to 11!!!!

It is not really all that bad, but at the moment, he would much rather not be on his belly. Oddly, you can hold him over your head in a "superman" position for as long as your strength will allow. I think it has more to do with what he can see than being on his belly. The view from the ground is probably not to his liking. Which also pleases me.