Both Super Mario Galaxy and Super Mario 3D World were great games.  Super Mario Galaxy was probably one of  the best selling Mario games of the Nintendo Wii.  Since its release back in the Fall of 2007 Super Mario Galaxy had managed to sell over 11 million units worldwide.  Not only was the concept, storyline and gameplay for Super Mario Galaxy was great but it was also very creative.  As a single player game Super Mario Galaxy was very fun to play.

When it comes down to multiplayer games Super Mario 3D World seemed more fun on the Nintendo Wii-U.  In Super Mario 3D World players had the option to play as multiple characters including Mario, Luigi, Princess Peach, Toad and Rosalina who was a hidden character.  While Super Mario 3D World may have been a better multiplayer game than Super Mario Galaxy it still paled in comparison in terms of popularity and overall sales. If Super Mario 3D World was featured exclusively on the Nintendo Wii instead of the Wii-U the game could have possibly sold more.  However. Super Mario 3D World still may not have sold nearly as much as Super Mario Galaxy.