Bionicle: Legends of Mata Nui was a planned PC game developed by Saffire Corporation and was to be released in 2001 as a tie in with LEGO's Bionicle toy line. The game would have you play as all 6 of the Toa Mata, exploring parts of the island and fighting various Rahi. The game was cancelled after a glitch was found in the first level which stopped players from completing the level, a low budget also contributed to the games cancellation.
Copies of the game were to contain a Mask of Time, known as the Vahi but due to it's cancellation the mask was instead given away at promotional events in 2001.
Some game-play of the game can be found online as well as some screenshots.