Well there doesn't seem to be a topic for this yet, so I may as well get the ball rolling. There is quite a bit of content in Bionicle Heroes not seen by public eyes. I'm not just talking about the developer trivia and bug lists, but also things like unused NPCs, (or I think they are anyway..):
And debug/test levels.
The latter of which actually contains multiple test levels, one of which I was able to get partially functional on the Nintendo Gamecube port. The only problem is that when you look in a specific direction, the game will always crash.
Is there any chance somebody can help me figure out why the level is doing this? If nothing else, it's something to get the topic rolling. I'd also be very curious to see those Matoran files in game or otherwise, unfortunately I can't find anything capable of unpacking the .pak files which in this game I'm almost certain contain model data.
Another thing I was trying to do yesterday but failing to do, the demo for Bionicle Heroes had superior Hero Mode mechanics, requiring a button be pushed to activate it, and giving you a time limit to use it. I was hoping to try to port this into the final game, but I'm not sure what files reference it. Any ideas on that?