Doesn't really matter. Yoshi's Island DS is a sequel in the sense that it occurs after the first, but you won't be missing out on anything story-wise. The games are unrelated to each other except for premise (baby Mario) and gameplay similarities. It's not "Yoshi's Island 1" and "Yoshi's Island 2" so much as "Yoshi's Island" and "Yoshi's Island Revisited."



