or a joystick in /dev/js0 :
- Joystick = Movement
- Any button = Shoot
To proceed through storyboards, map, etc use the keypad/joypad (to change level on the map) and either Enter, or a joystick button.
To exit back to the map from a level, press Esc.
To exit from the map and quit the game, press Esc again.
The game will create a file in your home directory called ~/.exobius0rc This file has scores per level separated by spaces. A score of -1 means the level has not yet been completed.