: You have three types of bubbles at your disposal. To
select the one you want to fire, press the space bar.
: This key enables you pause during a game. By pressing this
key again you will continue with the game.
: Enables you to leave a game : return to the menu.
: Ulopa may be imprisoned, in which case the only way to
continue the game is to press the key "ESC" (Ulopa will lose one
life and you will continue the game in another area).
: This key enables you to call the merchant. (Consult the
paragraph "THE MERCHANT" to obtain additional information about
this option).