Close your eyes and its there. Lie trying to fall asleep and it’s there. Put a Tetris DX cartridge into you Game Boy and, believe it or not, it’s there. I’m talking about the Tetris mindset. Falling blocks possessing your mind, endlessly being fit into each other. This is what happens when you play Tetris (or any good puzzle game). It stays with you…. FOREVER! Not that that’s a bad thing, especially when it’s portable. Tetris DX is the best incarnation of Tetris I have ever played. There are four game modes (more one those later) on of which is very innovative. You also get color, something lacking from the…