QWOP the hardest game ever.Players play as an athlete named "Qwop", who is participating in a 100-meter event at the Olympic Games. Using only the Q, W, O and P keys, players must control the movement of the athlete's legs to make the character move forward while trying to avoid falling over. The Q and W keys each drive one of the runner's thighs, while the O and P keys work the runner's calves. The Q key drives the runner's right thigh forward and left thigh backward, and the W key also affects the thighs and does the opposite. The O and P keys work in the same way as the Q and W keys, but with the runner's calves. The actual amount of movement of a joint is affected by the resistance due to forces from gravity and inertia placed upon it.