I don't claim to be a pro, but Tetris got a heck of a lot easier when they started letting you spin your pieces infinitely once they hit the bottom. I maxed out levels… then lines… then the score on the Nintendo DS in 2006 or 2007. There was a bug in the game, however, that wouldn't let you save scores above 99,999,999, which was kind of a bummer after a game that took up about a month's worth of commutes.