- one level takes place in a pyramid
- in shadow levels, secrets can be found by looking for inconsistencies in the patterns of light
- one level features a hidden animated squatting Mario sprite
- Bowser will drive along the top of one of his castles
- another boss battle features a Super Mario 3D Land-style Boom-Boom who can turn invisible
- collecting stamps in levels unlocks an uncolored stamp within a stamp book, which we now know is used for Miiverse messages