In Marios Adventure, you must navigate your way around the maps with the aim of locating the green "?" spheres. Once you find one, simply jump into it and you have cleared that map and will teleport to the next one. Unlike other mario games, there are no powerups or anything and you don't die with one hit. Instead the green extra life mushrooms at the bottom right represent how many times you can be hit before dying. Also, if you die at anytime it's game over and you start from the beginning again. The maps are short but the iron man aspect of this game makes it tough!