Marshmallow

When Anna finally reunites with Elsa at the latter's ice palace, they are both very happy to see each other, especially when Olaf introduces himself. However, Elsa has a flashback of accidentally freezing Anna when they were younger, and proceeds to shut her out again. After Elsa accidentally freezes Anna's heart, she creates a giant ice monster (that Olaf calls Marshmallow) to throw Anna, Kristoff, and Olaf out to protect Anna.

When Marshmallow throws them out, Anna yells that "it's not nice to throw snow, people!". When she throws a snowball at him, he only gets angrier and grows icicles from his body.

He continued to chase them through the woods, being delayed when Anna flings snow off a pine tree at him. Soon, they reach the edge of a two-hundred foot cliff, and are forced to stop.

Kristoff pulls out a long rope, and digs a snow anchor so they can jump off the cliff. They start to shinny down the rope. Meanwhile, Marshmallow catches up to them, kicking Olaf off his leg and over the cliff edge. As Anna and Kristoff are going down the cliff, Marshmallow pulls up their rope, and breathes frosty air in their faces. Thanks to Anna's quick thinking, she cut the rope with Kristoff's knife, and they fall over the edge, causing Marshmallow to stop chasing them.