Heh. I missed two things the first three or so times I beat the game.
The first was using jump while floating to put the thought bubble back as your levitation ball. This would have saved me from having to always have levitation as one of my PSI Powers. This technique I find extremely useful.
The second is pressing jump and punch at the same time while levitating to do an instant Palm Bomb. I discovered both of these on my last run through the game, however. This one is fun for taking out those annoying crowds without having to use effort. Bleh, effort!
...You don't smell like pond scum.
Nice. You should write greeting cards.