That’s not cool. Once you’ve destroyed all 24 eggs a blue access card is supposed to appear. Any chance you can send the save game files to me at bwldrbst at gmail.com ? Or, log it as an issue at https://github.com/adkennan/Ecliptic_public.
Oh, you meant that ALL eggs must be destroyed. I was doing something else: I tried to destroy few eggs and checked if card is beneath any of them. Then I reloaded my saved game and tried to destroy few other eggs. I thought that blue card is hidden under one of the egg, like the shotgun and red card.
Destroying all eggs is quite hard task, especially when most of my attack are missed.