From Bennett Foddy:
In this spiritual sequel to QWOP, you take the role of a shirtless Scotsman as he hauls himself up a cliff without the aid of ropes or even his legs. Your goal: to burgle the clifftop nest of a fierce and relentless seagull.
The cliff is dotted with iron rings, which are labeled with the letters of the alphabet. By holding the corresponding keys on your keyboard, you will reach for and grip the rings. But be careful! If you get confused and lift the wrong finger at the wrong time, you'll plummet to a watery death.
Try not to get your fingers tied in a knot.