How to Unlock Levels on the Wii "Mario Kart"by Angela M. Wheeland ; Updated September 22, 2017
Mario Kart Wii is the fifth game in the "Mario Kart" series. Originally released in 1992 for the Super Nintendo, "Mario Kart" is a go-kart racing video game available for each of the subsequent Nintendo consoles. The game requires players to compete in a series of go-kart races, competing against the computer, other players in multiplayer mode and players using Wi-Fi. When you initially begin playing the game, you have access to four levels: Flower, Mushroom, Banana and Shell Cup. To unlock all of the levels on "Mario Kart Wii," you must win a trophy at each of the Cups.
Win a trophy in the Flower and Mushroom Cup to unlock the Star Cup. You must place at least third place in each Cups to win a trophy.
Win a trophy in the Star Cup to unlock the Special Cup. You must place at least third place in the Star Cup to win a trophy.
Win a trophy in the Banana and Shell Cup to unlock the Leaf Cup. You must place at least third place.
Win a trophy in the Leaf Cup to unlock the Lightening Cup. You must place at least third place.
Place first place each of the 150cc Cup races to unlock Mirror mode.