I was not expecting a katamari clone, nice work!
I like how there seems to be a sensible grading system for your snowman; it creates an actual objective to what otherwise initially appears to be utter chaos.
I love all the little models and their variety!
Main criticism is the controls are a little confusing; I know you're meant to be tilting the stage but due to the static background and the way the camera seems to work I never really felt like it was the stage that was tipping and in my head I'd be going back to assuming it was the ball I was directly controlling which caused a wierd disconnect between what I expect to happen and what ends up happening.
That's about it, though. Good silly fun.