Newer Super Mario Bros. Wii

Newer is a full unofficial sequel to New Super Mario Bros. Wii, crafted over the span of 3 years by a team of devoted Nintendo fans. Playable legally on any homebrew-enabled Wii; no piracy or hardware mods needed.

Mario and his friends decide to take a vacation to Yoshi's Island, but it doesn't take long before the princess goes missing! Looks like Bowser is at it again!