It's been a while since I've been here; recently I played a little bit of Cultures 1 again and I found that there is a secret easter egg level left in the game by the developers from Funatics! It has you finding the village where the people who work at Funatics live. You can play it by clicking on the heart marking in the rock in the main menu background. It only works in the first menu with the choice for singleplayer and multiplayer, and does not work in any of the other menu's.
When you attack the developers with your swordsman 3, there are all kinds of secret briefings. They even talk about Cultures 2:
And there's also a Hollywood sign in the back of the level:
I also made a small Youtube video showing how to play it and what is in the level:
https://www.youtube.com/watch?v=9tzvH-PT5iA
Has anyone else found this before?
