15 Seconds PE is not an exact copy of the map SethBling but surely builds are inspired by it.
The map can be played alone or with friends. It consists of several levels where each one has a little more difficult. The speed of your players would be greatly increased (through the use of a potion effects, Speed 7) which makes it more difficult to move very much. The goal is to complete each level in 15 sec. Set a timer or something to track your time.