Okay... Here's something that drives me crazy and I just gotta say this... YOU CAN STILL UPDATE THE GAME -.- Simply open up feral-heart in notepad and edit what you want! I have no clue if this would work, but I'm pretty sure someone with a pretty good skill for coding could be able to do anything they want with the game!
Take a look at this quote from the Official Game rules:
Altering Game Files
Do NOT alter any of the decrypted files or codes for the game that might affect the maps and/or gameplay. Giving you an advantage or not, the files should remain intact unless you are given a permission to change them. If you are caught doing this you will most likely face a longer ban.
The source code may have not been made public because KovuLKD may not want people to edit the game. It's not a wise idea to change a game in such a way without any permission, as that quote says above. ;o
I do think this was answered a few times, gonna message a mod about it. Tis best not to bring other issues in...
~ Whisper