This is the third level of the Winter Games tunnel. It can be unlocked after playing Level 15 of the Main Tunnel and the first two levels of the Winter Games tunnel.
There are a large number of ice ramps, so most of the time, you don't have to jump, but when the distance you need to jump is too large, you may need to consider to jump on the ramp. This can help you jump farther.
Also, if there aren't any tiles in front of you, and you see a huge gap, you can jump and change gravity in the air. This can be useful.