Hello Greg! In 2001, there was a PC game developed that was known as BIONICLE: The Legend of Mata Nui. The game was never released to the public for various reasons. Recently, an alpha build of the game has been circulating around. In that build, there is a Matoran who appears nowhere else in any canon materials, an Onu-Matoran with a purple Hau named Nobua:
Is it possible that there could canonically be a Matoran with the same attributes? AKA, can this semi-canon character be fully canonized?