New Super Mario Bros. Wii

I'd always intended to come back to this game by myself, to collect bonus medals and unlock new stuff. But the not-so-silver lining of New SMB Wii is that, although it's constructed on the same foundation that's historically made Mario a single-player joyride - complete with warp shortcuts and a special world - its levels are simply too loose and spread-out to enjoy solo. Without other players getting in your way, it's actually a pretty light experience.

So, yeah, lost interest. May we meet again in another game, World 9.

Progress: Beat Bowser (Co-op)