Supa Happy Deth Slide

Controls: 

WASD to move, Mouse to look, Space to jump, Ctrl or C to crouch, Hold R or F to restart, Esc or P to pause.

XInput:

Left stick to move, Right stick to look, A to jump, B to crouch, Back (Select) to quick reset, Start to pause.

(menu navigation doesn't work on controller, sorry!)