Koala's Tea Party

Koala is all alone as can be, as she gazes outside her window. It was a wonderful day to have a tea party with her friends. One by one Emu, Kangaroo, Wombat, Platypus and the Echidna comes to Koala's tree house. When Ah Oh, there was one teeny tiny problem they all can't climb. Instead, they all try something different to get to the top. But only found themselves hurt and disappointed. All of a sudden Koala had a brilliant idea. Can you guess what it will be?