The Ultra Challenge Pack will put you to the test with:
8 new ultra-hard challenges inside each world’s Secret chapter

5 exclusive co-op maps

Gather your heroes and dive into eight new Ultra Hard Challenges to prove your worth! In addition, a gust of chaos brings frenzy to the co-op mode; Chain Chomps, Tornados, Boos and Pyroclasts have become unstoppable and are wreaking havoc on the 5 exclusive new co-op maps.

Get ready to team up against their chaotic forces in the brand new Cataclysm Kerfuffle Co-op Campaign!

More details on the official game page of Mario + Rabbids Kingdom Battle Ultra Challenge Pack ...