A game-breaking bug was found in Brothel Megacorporation was found in version 0.9.

Bug description: during the first raid tutorial, there is an "X" button that can close the tutorial. Clicking this button before completing the tutorial will prevent the player from getting their rank B certificate.

To fix the bug or to prevent it from ever happening, please download the latest version of the game (0.9.2) and click the big UPDATE button in the office room. This will allow you to properly complete the raid tutorial. Let me know if you encounter any more bugs, I will be updating the game with fixes as I find them.