Nightbear is a 2D side-scrolling free runner. You take the role of a Teddy Bear that is locked in the nightmare of his owner, Theo. You find yourself traversing through a deadly environment in order to somehow end this never ending nightmare. As the player you will affect the heartbeat of Theo, which will increase/decrease the speed you run at. Player can also affect the heartbeat to perform other actions such as jumping. The level never ends, so players will be scored based on how long they can survive this nightmare.