This page highlights the differences between Duke Org Rouki and Zen-Aku.
|Duke Org Rouki
|Took control of Shirogane's body and held a grudge with the GaoRangers.
||Took control of Merrick Baliton's body, plotting revenge on the Wild Force Rangers.
|Sealed in a stone coffin for 1000 years.
||Sealed in a stone coffin for 3000 years.
|An Org born of pure evil energy contained in a wolf mask.
||An Org spirit contained in a wolf mask.
|Returned shortly after Shirogane was freed of him, while the GaoRangers were still fighting Ura.
||Returned to face the Wild Force Rangers again after they had destroyed Nayzor for good.
|Killed by GaoHunter Justice and the wolf mask destroyed.
||Apparently destroyed through defeating the Predazord, reverting Merrick back to normal and the wolf mask destroyed.
Later inexplicably returned but sought redemption rather than continuing his quest for revenge.
|The dark energy he was composed of was used by Ura to create increasingly more powerful Orgs before finally using it to take on his Ultimate form.
||Had no involvement in making stronger Orgs or granting Nayzor his powered-up form.