I'm sorry, I really tried to reach 2000m to got the surprise but couldn’t get further than 1275m.
After 1000m, it feels almost impossible to progress further due to the abundance of snowmen. I tried to stay small to avoid them. But then I had to pick up snowballs, which made me bigger wich makes it almost impossible to avoid them.
The game looks really good and the music is entertaining. It really kept me going. Plus, bunny hopping with a big snowball feels great.
It would be helpful to know when the invincibility is going to disappear. And I encountered a bug where the ground just disappeared under me.
Good job on the game! It is fun.