Santa's Snowy Sprint

A runner along snowy rooftops with Santa doing the running. Chimneys are jumps, ice is a hazard, and the gifts scattered along the route are the score. What lifts it above the hundreds of identical runners is the pacing of the obstacles: they arrive in patterns you can learn rather than at random, so a long run is something you earn rather than something you are given. Power-ups turn up often enough to matter and rarely enough to still be a surprise.