Edge To Edge

Edge To Edge is an achievement, that you can get by touching all 4 walls in 2.5 seconds. You get 2 ROY for completing this achievement.

Tips & Tricks
The most reliable method to getting the achievement is starting in one corner and hit one wall  then other one and then boosting all the way across to the opposite corner and try to bounce from one wall there to the last one while boosting along the entire path