Hmm, "This is the only level" was mighty fun because of the experimenting. "Obey the game" is a lot less fun because its essence is getting you to move (or not) faster and faster (although I do like the resulting havoc in the end, albeit not too much, since playing the slow levels to your best ability means you can often turn the way-too-fast levels into a game of bets, where you loose to little to ever get game over). "Run Elephant Run" was the first in the series, I believe, and it shows: the blue elephant itself is the ONLY fun thing there...
