If you hadn't played New Super Mario Bros U + New Super Luigi U (we'll call it NSMBU+NSLU) when it launched on the Wii U then this is a great time to experience the game in full 1080p. Like most other Wii U to Switch ports this game now runs at 1080p on TV and 720p handheld. On Wii U it ran at 720p on TV and 480p in handheld. The other new additions have been the replacement of blue Toad with options for Toadette (aka Peachette with the super crown) and Nabbit who doesn't take damage from enemies. If you played through on Wii U it was a fun game but now with Nabbit a younger player can have fun playing with a group of more experienced players. Also Peachette can fall it pits and bounce back up once per fall. So the new player options are great. Not to mention the New Super Luigi U DLC being included that was $20 more than the base $60 when it released after the original game. If you've played through the game once there isn't really any new content aside from the two new player choices. Old modes return including challenges where you can play as a Mii character. So I can recommend NSMBU+NSLU Deluxe but your level of enjoyment can vary. On the one hand not many experienced this game on Wii U so it's great to have a true Mario side scrolling adventure on Switch.