This was a fairly simple but polished arcade style game.
First I want to talk about the art. I think the art style for this game is actual quite a clean look. Even though its just black and white with simple pixel art, the particles and cohesive look make the game feel aesthetically pleasing to look at.
Next I want to go over the audio. I think the song is an ok fit for the game (maybe it could have felt more "wintery", but that's just me being nitpicky), but the incredibly short length of the song causes it to loop a lot. This gets annoying pretty fast, especially considering the already simplistic and endless gameplay. As for the sound effects there aren't many needed for this game. I only notice the abstract "hurt" sound when you take damage, which works well enough considering the art style of the game.
Last I want to go into the actual gameplay. I want to start by thanking you for putting your controls in your games somewhere. While the controls are incredibly basic, its very important to tell the player, and that's something a lot of people missed in this jam so good job.
For the actual game loop, I think you do a good job of initially ramping the speed of the snow (At least I'm pretty sure they speed up?), which makes the difficulty feel pretty good. That being said I think you cap the speed a bit early, making it pretty easy to carry on the game forever, which turns the "highscore" into a game of patience instead of skill.
Also, I noticed its easy to camp the top left corner, making it so no snow will hit you (there than when you are big enough to survive a hit). This could easily be fixed by allowing snow to go a bit higher (Or if it is actually possible to get hit there while small and I'm just lucky, ramping up the snows speed and spawn rate more would have also worked).
Overall, this was a charming little game that excels in its simple but appealing visuals. Cant wait to see what you do next! I apologize if this review was a bit much, but I'm doing this to all the games from this jam as I think critiques help us grow.