Line up four in a row & you"re good to go! Experience endless Pokémon puzzle action in Pokémon Link, a brand-new puzzle game only for Nintendo DS. Using the stylus, slide Pokémon puzzle pieces and line up four in a row (horizontally or vertically) to make a "Link" and clear the screen. When you line up four identical Pokémon vertically or horizontally, it"s called a Link. When you get a Link with four or more Pokémon, they disappear from the screen and you enter Link Chance mode. While the Link Chance lasts, you can Link three or more Pokémon, and then two Pokémon. When you line up more Pokémon than needed to get a Link -- such as a Link with five Pokémon instead of four -- a Ditto will appear. Since Ditto can be Link with any Pokémon, they come in very handy and can help you rack up big points.Here is a closer look at the four modes of play in Pokémon Link.