Kung Fu Panda 2

You will get this during the Ox levels. Story related, cannot be missed.

Strategy:

Fight is not that hard. He send minions after you while also dropping stones from above. Keep on the move in a kind of circle pattern and the rocks don’t really factor in. I never got hit by them even once. Attack Xiao Dan with normal strategies used before- strong attacks in open windows, dodge a lot, and look for counter opportunities.

After you defeat him, there is no need to hurry. Although they say to run, there is no timer set, so take the time to explore and get all of the collectibles before you go. You can revisit this zone later if you need to though. Once you are ready, go to monkey.