Destroyed the last seed. Now about to board the pirate ship... I guess I'm approaching the end. *** Ugh... I'm at the pirate ship and turns out I need codes to control the leviathan... Now I have to head back to the Valhalla... except that I need two missing energy cells to activate passage to an area... backtracking to get those (they're hidden on Elysia and Bryyo). *** Got those two energy cells... now on the pirate planet, ready to board the ship and get in control of the leviathan.