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 the 8 new Ultra Hard Challenges to prove your worth! As if it wasn't enough, a gust of chaos is bringing panic in to the Co-op Mode; Chain Chomps, Tornados and Boos are wreaking havoc on the 5 new Co-op Maps.

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