Up arrow/Up Button = Makes the speed value higher

Down Arrow/Down Button = Makes the speed value lower

Mouse Left Click Hold = Drags the snake at (depending on speed value) Force

R (on keyboard) /Restart Button = Saves your zoom and speed then restarts the layout then sets the zoom to the same value and speed

Mouse wheel up/Zoom In Button = Zooms you in at the Snake

Mouse wheel down/Zoom Out Button = Zooms you out.