Yoshi (ヨッシーのたまご, Yoshi's Egg), known in Europe as Mario & Yoshi, is a 1992 puzzle video game developed by Game Freak for the Nintendo Entertainment System and the Game Boy. Despite the name, the player does not actually play as Yoshi, but rather as Mario. The basic format involved a number of objects falling from the top of the screen in one of four columns. When they reach the floor, they stop, and if they fall on top of another object, they stack. Mario has the ability to switch any two adjacent stacks. He must manuever the columns such that objects of the same type fall on one another and cancel each other out. The Yoshi Egg object will fall in two halves, and if united, will hatch a baby Yoshi. The adult Yoshi stands to the side of the screen, keeping score of the amount of baby Yoshi