Yeah now I see. For some reason my eyes were glued on the "Restart Level", "Exit to Menu" and "Quit the Destop" buttons, same me-issue as with the mangeta card.
Played the rest of the game. The open-endedness of the levels is nice for those who like to explore, kinda like looking for secrets in doom. I prefer just going through gauntles and see what enemies can throw at me. Not sure if it is intentional, but the auto shotgun is really strong. Accurate, and can do much more before having to reload unlike the SMG. Also now I can tell that I have been missing the keycards, and mosly happened upon by chance. Maybe they should be a bit bigger, or standing vertically.
Neat game though.