Bionicle - Bionicle supporting the LEGO company

But seriously, revealing that Mata Nui was a giant robot this entire time was perhaps one of the greatest twists that I've ever seen coming from a toyline… Or any piece of fiction for that matter.

The fact that it was also a double whammy with:

Made it pretty much unforgettable for me. I was on the edge of my seat for months waiting for the story to continue.