"Simple" Keyboard and Mouse:
W or Space = Bunnyhop/Walljump
A or Left Arrow = Move left
D or Right Arrow = Move right
"Advanced" Keyboard and Mouse:
Up Arrow = Jump once / Walljump once
A or Left Arrow = Move left
D or Right Arrow = Move right
Mobile:
Up Arrow = Bunnyhop/Walljump
Left Arrow = Move left
Right Arrow = Move right
Controller:
Left Stick: Up, DPad: Up, A, or B = Bunnyhop/Walljump
Left Stick: Left or DPad: Left = Move left
Left Stick: Right or DPad: Right = Move right
Use your mouse or touchscreen to select buttons in the Main Menu to warp to levels.