I like play Tetris on my PSP once in a while, and I consider myself a better than average player. So, when my girlfriend started playing and started slaying my top scores with her eyes closed I felt kinda lame. Not that I was beaten by a girl, but that I was being beaten so badly by a person that hardly ever played. After a few weeks I finally figured it out. It's frameskip. I busted her using low frameskip on the faster levels to slow the descending puzzle pieces. :P Damn smart girly!