Have you checked the selection of puzzle games at your local video game store lately? "Tetris." "Super Tetris." "Tater Tetris." "Emerald Tetris Nano 3 Meets Pac-Man Remix Lite." It's just not that often that a truly original idea for a puzzle game comes along. Cube for PSP is one such attempt at an original puzzle idea, but, as evidenced by the endless clones of previous successful games, ensuring that a new puzzle idea is actually entertaining and addictive is not easy. While it certainly isn't the next "Tetris," Cube is a unique idea that is likely to hold your attention for at least a little while.