^they were in school uniform at the end so you can add that too
anyway most of the later episodes didn't happen at school. The story revolves more on the students so I think that was KJ was aiming for.
one thing i can comment ending suck and it was bad as hell it like a story that a mushroom that just pop out of nowhere wahahaha (i apologize on tenma fans out there) but its the truth >
I guess TEnma really is the main character of the story. =_="
oh well ...
*Vinc waits patiently for SR doujins for an alternate ending*