It was a little tricky to figure out what to do. The game tells you to turn things into ice, but not why. So I clicked random things until I tried clicking the ground and Ice King slid to her. Once I had some sense of what to do, it was a fun little game, but probably would have been a little better for me if I was familiar with Adventure Time.
I found the freeze frame a little too long, but "yiss" is clearly intentional.