Adds Source Movement. Includes: Climb, Surf, Bhop, Skate, and more. Basically Walker with a bit more movement options.
Key Binds: Tab to show players, Q to open Settings, +/- to go into Third Person, Scroll Up/Down to Jump, C to Reverse View/Controls. There is also a "Map Change" option inside the Q menu to select a community map.
Also includes Wall Jump (Direction Key + Jump), Wall Sliding (Right Click)