Kameo: Elements of Power/Thorn's Castle

After a short cinematic (which will not be shown in multiplayer mode), Kameo transforms into Chilla and grabs onto an ice wall. Control is now given to you. Start climbing up the wall with. While climbing press to leap a short distance, which will save you some time. Halfway up the wall some trolls with cannons on their backs will start firing at you. Just keep climbing. At the top, head to the left, then press to drop down.

A cutscene will occur and Kameo will automatically transform into Pummel Weed. Approach the trolls that appear and tap and  to jab them. If you do it enough you will perform a combo and finish them off with an uppercut.