Game in which the user controls a door that separates two gas chambers. As individual gas particles approach the door, the user must open and close it only to allow fast-moving particles to pass through one direction and slow-moving particles to pass through the opposite direction. By doing so, the user will prompt unbalanced temperatures in both rooms. This imbalance is the source of energy needed to gas a car that needs to arrive at the chequered flag before a monster catches it