Once all the leaks on one screen are sealed the air pressure of The colony gees up and a bonus life is awarded. However , if you leave a screen before sealing all the leaks they will all reappear when the plumber returns to the screen If pressure reaches maximum the game starts all over again only faster. The leaks are always in the pipes above the corridors so that they are sealed by firing a laser upwards at them Unfortunately this can't be used on the alien inhabitants, who just have to be avoided. They move up and down the corridor killing you on contact, out some can be flown over using your jet pack. The laser and the pack are both supplied by fuel and this is another thing that will end the game if it runs out . This losing all your oxygen , fuel or lives all end the game. Once all the leaks on one screen are sealed the air pressure of The colony gees up and a bonus life is awarded. However , if you leave a screen before sealing all the leaks they will all reappear when the plumber returns to the screen. If pressure reaches maximum the game starts all over again only faster.  
| 
