When you are facing the leader Foosa at the very end when you are on a platform with spikes around you, he will first make the back catch on fire then start chasing you. He will get tired and give you a chance to hit him. After that, he will blow green air at you. Keep jumping. He will then go to the other side of the platform and start to give the vultures a signal to attack. Keep roaring at them. This process will repeat until the leader Foosa's life meter goes out. Sometimes the penguins will drop mangos.