Jade Empire

Hint: Get All 3 Endings:
By saving your game near the end of the quest, you can play the ending and view all three different endings of Jade Empire.

Unlockable: Minigame:
When you're confronted with enemies during the story, make sure to choose attack, and not evade. With each confrontation you unlock a Dragonfly mission that's available from the main menu.

Talk to Lord Lao in Imperial City that's standing by your followers. When you talk to him he'll offer you a quest to get machine parts. This will unlock more Dragonfly minigames.

Unlockable: Technique:
Defeat Imperial Arena with flawless victory and you will receive a new technique from Sweet Poison Lyn.

Unlockable: Crimson Tears Technique:
Climb the ranks in the Imperial Arena to the Bronze Division. When Cho comes and asks you to poison Crimson Khana, make sure to refuse. Then find her and tell her about this. Defeat her in the ring she'll teach you dual sword style Crimson Tears.