New Super Mario Bros. Wii
The game is the first on the Wii to feature "Super Guide," a new system devised by Mario creator Shigeru Miyamoto. During single-player mode, if a player dies eight times in a row in any level, a green "!"-block appears, allowing a computer-controlled Luigi to show the player a safe path through the level. The player may interrupt the guide at any time and take control. After Luigi completes it, the player has the option to try the level again or skip it completely. However, Luigi will not reveal any Star Coin locations or secret exits. A variation of this is used in Super Mario Galaxy 2, where it is called  "Cosmic Guide." Another variation is found in Donkey Kong Country Returns, where it is also known as "Super Guide."