In a race to reach their respective exit, players must utilize the ability to shift the flow of gravity. They may use it to overcome any obstacles in their way, or to prevent the other player from progressing.
The ability to shift the flow of gravity is shared by the players, so they must wait for the other to use it before they can. In cooperative levels, players must help each other reach keys and platforms by coordinating their gravity shifts.
10 different cooperative and competitive levels exist, each with their own unique gimmick. This prototype was to really focus on level design and figure out ways to make the gravity switch engaging for the players.