Directional Gravity. That's what Dr. Heartman was working on when he went partially mad and trapped some of his test subjects' consciousnesses into his test program Dravity. In the program, subjects perceive themselves as a black box and the exit is perceived as an orange box. You are one of those test subjects and you need to complete the tests in the rooms in order to advance through all the levels and satisfy Dr. Heartman's unending passion for testing. Only then will he return your mind to your body. That is if he is not caught first!
Move with WASD keys. Jump with Space or Shift key.