I really liked the game.
First of all I liked that there was a way to change the player. Then I liked the Pokémon like fight-screen and battle the other skier to go past them. And the rest was an easy enough concept to grasp fast and really progress in the game.
A couple of seconds immunity or something would be nice to not get in to a fight, when the lanes are all pretty packed.
But all in all, good job!