Gold Edition includes game and season pass:

8 new solo challenges + 5 co-op maps
16 new weapons.
An exclusive world featuring a new hero, coming in early 2018.
The Mushroom Kingdom has been torn apart by a mysterious vortex, transporting the chaotic Rabbids into this once-peaceful land. To restore order, Mario, Luigi, Princess Peach, and Yoshi must team up with a whole new crew: four Rabbids heroes!

Together, they will battle with weapons through four worlds filled with combat, puzzles, and unpredictable enemies. Developed exclusively for the Nintendo Switch system, Mario + Rabbids Kingdom Battle is the best of the Mario and Rabbids franchises, combining all that you love about Marios iconic universe with the side-splitting antics of the Rabbids.