Metroid Prime 2: Echoes/Sky Temple

Sky Temple
Time to confront the final bosses in the game. The battles will be long and difficult so get ready for a challenge.

Sky Temple Energy Controller
You see the enegry you're after, but a creature comes through the ceiling and snatches it away.

There a ledges on the walls that allow you to get to the upper ledge. Locate the Save Station here and use it. There are also some Ing storage pods in case you need last minute refills. There is also a transporter hologram in the middle of the room in case you want to bo back. Use the door opposite the Safe Station.

Sanctum Access
Wall Jump up the shaft and go through the door at the top.

Sanctum
You see the Energy Core sitting in the middle of the room, but when you approach a creature looking like Cthulu pounces and a battle begins.

Escape from Dark Aether
After defeating Emperor Ing, Samus collects the last of the energy, causing Dark Aether to become unstable. A countdown timer starts for 8 minutes with some music that Metroid veterans will find pleasingly familiar. It sounds like a lot of time to escape as you quickly make your way out of the Sanctum, but when you arrive back at the Sky Temple Gateway, your mysterious nemesis shows up again.

Samus barely escapes through the portal and returns the Light to Aether. Dark Aether collapses. Enjoy the ending sequence!