User blog comment:Sim533/Reminders/@comment-25324366-20150103172207/@comment-25715476-20150104073111

Selecting Figures: Fully upgraded Holiday Elf or Genie Girl. Trick is to use the Special Attack to give the speed boost along the way. The Skydiver may be able to do it as well. I haven't tried that one. Use the special attack just as you are descending the stairs from the platform from the Winter Pass entrance.

Timing: Timing the hills is critical.

The first hill alternates left, right, left snowballs.

The second switchback has all three along one side, so watch for them while going up the first hill and be prepared for the corner.

The third hill again alternates left, right, left.

The final corner is the finish line. Once you make it past the last cannon, you need to round that corner.

If you use the Genie Girl, you will bounce in the lamp up the hills, then pop out, then get ready to pop back in.

Repeating/Trying again: You can stay in the winter pass for as long as you like. The hills will reset after a period of time. Go up the hills. The finish line is at the corner past the last snowball cannon. If you don't get the achievement, go up past the next teleport point or all the way to the Crunch and wait a while, then teleport back down to the Winter Pass point and try again. You can repeat this for as many times as you care to try. It gets a little boring after a while.

Blocking the Cannons: You can have team members block the snowball cannons for you along the way, if that helps. You can team up and block for each other, just remember that as soon as one person crosses the start line the timer starts for everyone, so you teammates need to get out in front of you to be effective.