* To add/change mapping you can edit `/storage/.config/game/configs/hypseus/hypinput.ini` under `[KEYBOARD]` section by changing third number for a function from `0` (disabled) to a corresponding joystick value. You can identify joystick values by running `jstest /dev/input/js0` over ssh.
* For example the following would assign `quit` to ++"L1"++ and `pause` to ++"R1"++