It's a bit of a trivial quibble, but I'm not sure the switching mechanic really makes me think "on/off." I also found that the game seemed to steer me away from switching to the ghost during the clown battle since it takes a while to get Maisy within range of the head, and it seems easier to dodge shots once you're there than it is to switch forms (which seems to dump you back down to ground level?) and make your way back up if necessary. It may be that I wasn't playing in the most efficient way, though. The game otherwise feels pretty polished: I like the graphics and the sound (especially the slowed-down music) is well selected all round.