The biggest strengths of the 3DS version is being able to create stages on the go and playing 88 campaign stages along with achieving stage specific medal challenges. Also included is the ability to play some of the stages uploaded on-line for the Wii U version. It goes online to pick random stages created using the Wii U version to form a playlist for the 100 Mario Challenge, and to download and play select stages from a playlist based around difficulty. Overall it’s a great game for the price and worth picking up if you love Mario games.