Hey, I saw your post on Reddit and really enjoyed testing the game.
I like the basic concept and the game has great potential. Even though there's still a lot of work to be done.
Some screens and assets still need to be replaced, and the world is too wide. Currently, it's not a problem to avoid enemies. A narrower path, such as a ski slope, would fit the theme and make the game more difficult. The trees in particular are a great way to define paths. If you'd rather make it a bobsled track, you can use the pipes and ice to create great tracks with various enemies and obstacles. Maybe even an idea for building multiple worlds.
I think the Yeti is great as a mobile opponent.
A small bug I noticed: when you start a new game, the penguin may be invisible. It doesn't happen often, but it happens too often.
As I said, I think the idea is great and I'm looking forward to seeing what you make of the game. If you have any questions, need more feedback, or have any ideas, feel free to let me know :)