Hi Horst,
that is maybe the "can't-find-the-default-font-problem".
i downloaded your code and copied freesansbold.tff from <python-install-dir>/lib/site-packeges/pygame to the TuxFighter42/dist
directory.
Then i replaced every call to pygame.font.Font(None, ...) with pygame.font.Font("freesansbold.ttf", ...) and i could start the game.
Felix
Hallo Felix,