Bionicle: The Game PC cheats

Unlock Takua Nuva:
Win the entire game using all 6 Toas.

Unlock extras:
Get all lightstones with each Toa to unlock an item in your extras menu.

Defeating the Brown Rakhshi:
To defeat the Brown Rakhshi, corner him on one of the floating wood raft-like objects. Then, shoot that one with elemental energy and you will win the level. Note: This is sometimes difficult to do.

Dodging attacks and refilling your Mana:
When getting attacked (this works well when facing more than one opponent), jump and use your shield rapidly. The attack will completely miss and you will refill your Mana. Note: Do not do this with dragonflies and other flying enemies. It may work, but there is less chance of it working. For extra effect, while in the air press [Attack]. Since enemies are vulnerable when they attack you, they will get serious damage.

Easy wins:
Rapidly press / to keep your shield on. Then, walk and fire. You will win. Note: This does not work on some Bosses.