The ice cave
Deep in the glacier, the route out of the cave is walled up with ice: clear blue ice, packed ice as hard as stone, and boulders that won’t move at all.
You have a sled and a puck. Bounce the puck off the sled and up into the ice to break it out, block by block. Where it lands on the sled sets the angle it leaves at.
Drag anywhere on the screen to slide the sled: your finger never has to cover it. Tap to send the puck off.
Some ice drops a power-up. Catch it on the sled. W widens the sled. C straps on crampons, and the puck sticks until you tap. A throws ice axes up the cave. S splits the puck in three. D slows it down, and 1 is a spare sled.
Clear the wall for a stage bonus, then on to the next. The puck gets faster the longer a rally lasts. Lose it past the sled, and you lose a sled.
Keep the puck in play.