The Wonderland Board

I thought that reaching an exit means the end of that character - but no!

If the EXIT is on a trampoline, then the character that exits, once landing continues to play - it becomes invisible, it can get killed, it can push objects, it does not allow switching to other characters and if it exits (again), the game is "won" even while the other characters are still onboard.

Is this intended?

If there is only one trampoline, the character exits, then lands (on a button, for example) but is considered to be gone. He can not move or do anything other than leave an impression where he landed. - very useful for button pushing and it's been used in a number of levels.

What you are seeing is a double trampoline exit. Two tramps, two exits. Then that character is still there and as you mentioned can move around. This is relatively new. If there are more than 2 characters, some limited character switching can be done. Maybe you saw it in the level I posted, or maybe you found it elsewhere, but for a good example of the double tramp exit, try "drag along" the level I posted on the cutom level board. http://www.pcpuzzle.com/forum/viewtopic.php?t=8618. This level doesn't allow for the character to move after exiting, because I made the landing zones a single space with no where to go.

yes, it seems to be a glitch, and a wonderful one at that!

I couldn't resist, I made a level using this glitch. Nice discovery.