One of Gameboy's Player's Choice games. If you haven't bought it yet, it is only $20 and is an terrific game.

User Rating: 10 | Super Mario Advance 3: Yoshi Island + Mario Brothers GBA
Yoshi's Island: Super Mario Advance 3 has recently became a Player's Choice game(meaning it is only $20 now). I haven't played this game for a long time. But now since I bought it, I realize what I missed out of the game. The graphics are very nice. The gameplay is very innovative. It is one of the most challenging Mario games I've ever played. This also a game for all of the Yoshi fans(I'm one myself). It is more like a prequel than a sequel to Super Mario World. It takes place during the Mario brothers baby days. The story goes like this: as the Mario brothers were being delivered to their parents(I wonder who their parents were) Kamek flew into the delivery bird and stole Luigi. Mario was dropped from the sky onto the Yoshis. The Yoshis then realized that Mario's brother has been kidnapped and decided to rescue him from the evil clutches of Kamek. You can find this game anywhere for $20.