A hybrid of Pac-Man and Tetris, Pac-Attack makes for an interesting concept. There are no pellets in this version, and Pac-Man can always eat the ghosts when he shows up, as long as you put them where he can get to them. Besides the ghosts, there are bricks, which are eliminated Tetris-style by completing a row. So the trick is to arrange the blocks as they fall so that Pac-Man eats all the ghosts and the bricks line up to be eliminated. Easy, huh?