Coaster was a minigame located on the CokeStudio's website (CokeMusic.com > MyCoke.com). You and a group of V-Egos worked together against another team of V-Egos to operate a roller coaster. Unlike Uncover the Music, Recycler, or V-Ego San, there wasn't a reward for this minigame.
The gameplay was Simon Says with different colored levers. The goal was to travel up the first slope before the other team. If you, or your teammate, would pull the correct order of levers; your Coaster would move up. If you gave an incorrect order or didn't enter it in time, the Coaster would stay still.