This is a personal project I've been working on for the past month. I've complied a comprehensive document that gathers a lot of concepts and story bible ideas from the first few years of Bionicle that were either changed or never saw the light of day. Things I cover include:
-The original intention for the Mata Nui robot
-Makuta's 2001 backstory
-Papu and Rangi's role
-The Toa's initial characterization
-and more!
If you're a longtime fan then I imagine a lot of this stuff will be familiar to you, but there's also some brand new info courtesy of one of Bionicle's creators.
Hope you all enjoy!
https://docs.google.com/document/d/1JNwJ9k7dGf4zpjOXolVidiKggGs4aP4uznIaDklIB5M/edit?usp=sharing