Type the cheats during the game:

 ZEROGEEKICKSASSHUHHUHHUHHUH                - Disables gravity.
 GAME OVER                                  - Game over
 TROUBLEWITHYOURINNEREAR                    - Turns gravity upside down.
 MICHAELCANENTERTHISLINEINFIVESECONDSCANYOU - Disables collisions and helps you out a bit
                                              in general (increases score, gives you some
                                              more ships, etc.)
 EJECT                                      - Ejects your customer.
 COMEONEVERYBODYFREEBEERFORALLOFYOU         - If things get too boring.
 MICHAELDIDANYONEEVERTELLYATHATBLACKHOLESHAVEALMOSTNOEFFECTATALL - Makes black holes stronger.
 MAJORENGINEMALFUNCTIONONMARS               - I wouldn't do that if I were you :)
 CANYOUSHOWMETHEENDINGSEQUENCE              - Well?
 ISTHISACHEAT                               - Simple question, simple answer.
 THISISNOTACHEATCODE                        - Nothing happens
 GETTHOSEFREAKSOUTTAMYFACETHEYBOREMENOEND   - To lower the number of people that need to be taken
                                              care before you may leave.
 MASOCHISMISMYTHINGIJUSTLOVEFLYINGTHOSEBLOKESAROUND  - Well... kinda reverses the other cheat.
 THISCRATEISAWKWARDIDENTERAREALLONGLINETOGETABETTERONE - Better ship.
 ICHBINZUGEILFUERDIESENLEVEL                - Next level.
 CREDITS                                    - Displays game credits.