very good enjoyable experience. I really like the snowmen that throw snowballs at you, that was really cool. Never have I felt such joy being assaulted by snowmen.
The character design is simple and cute, the sprite is well made and nicely animated. My one gripe with this thrilling experience was the size of the platforms in comparison to the player.
Love the pixel art, the gameplay is cool and I like the invincibility pickup! As an improvement maybe you could add different enemies? to spice it up :D Overall great game