play it, i dare you to start and then stop in the middle of a level....can't do it can you?
oh what's that? you can actually stop playing in the middle of a level? why? because your mind doesn't get stuck in OCD mode when playing games like tetris, dr. mario, and bejewled? weird. i can't imagine it.
when i was in college our house had an old school nintendo system. i quickly became the dr. mario champion of our dorm house. undergrads would come from far and wide to watch me kick those little viruses' butts. no seriously, they would.