I thought this was nice.
The controls were a little wonky for me, but I'm not the best at platformers. It seemed sort of like the movement when you were in the air was glitchy and unpredictable, it's hard to explain. But that little thing aside, it was fun and I didn't have much problems beating it and the story was simple but I was really glad it was there :D
And it's nice to know snowmen can build rocketships, too.
Made a Lumps Play of it, hope you like the pop-up commentary! Cheers.