It was called Yoshi's Universal Gravitation in Europe and in North America it was called Yoshi Topsy-TurvyThe 2 metroid games. and... idk. Maybe the Yoshi game with the special cart that could sense when it was tilted. That was pretty unique, being able to tilt the GBA and watch the game react to it. I don't remember what it was called, but I still have the cart in a box somewhere!