Walkthrough:Pokémon Ultra Sun and Ultra Moon/Part 25
These pages follow the enhanced versions, not Pokémon Sun and Moon. The guide for those games can be found here.
Altar of the SunneUS / Altar of the MooneUM
The ceremony
The long staircase out of Vast Poni Canyon climbs to the altar itself. Lillie takes her place on the platform across the water while you stand at the opposite side. Playing your Sun FluteUS/Moon FluteUM together with Lillie activates the altar, and a doorway opens to shoot a beam of light at the center of the platform. Nebby is drawn into the light and evolves into SolgaleoUS/LunalaUM right in front of you both.
Necrozma's fusion
Before Lillie can do anything more than marvel at the newly evolved Nebby, an Ultra Wormhole tears open above the altar. Lusamine and Guzma fall out of it, and Necrozma follows close behind them. Necrozma attacks Nebby, defeats it, and forces itself onto the Legendary Pokémon, fusing with it against its will. There is no talking Necrozma down now: you have to fight it yourself.
VS Necrozma
Necrozma has fused with Nebby and lashes out at both you and Lillie. It cannot be caught, and the outcome of the fight will not stop it: however the battle goes, Necrozma breaks free once it is done with you. SolgaleoUS/LunalaUM's power carries over into the fusion, so expect SteelUS/GhostUM attacks on top of its usual Psychic moves.
Win or lose, Necrozma tears itself free of you and Nebby and flees back through the wormhole it came from. Alola's light goes with it: the sky darkens, and Ultra Wormholes begin opening up all across the region. Lusamine and Guzma, shaken by what they have just seen, stay behind at the altar with you and Lillie while the Ultra Recon Squad arrives to explain what has to happen next.
Ultra Warp Ride
Lusamine asks the Ultra Recon Squad to help her reach Necrozma, but DulseUS / PhycoUM refuses her outright. Instead, the squad turns to you: they grant you access to Ultra Warp Ride and lend you their own LunalaUS/SolgaleoUM so you can follow Necrozma into Ultra Space and reach Ultra Megalopolis.
Ultra Warp Ride has you flying through Ultra Space on the Legendary Pokémon's back, steering by tilting the system (or, once you have made one trip, by using the Circle Pad instead if you would rather talk to the Aether Foundation Employee at the Game Freak building in Heahea City about switching control schemes). Absorbing the balls of energy scattered through the warp holes keeps your speed up; the electrified obstacles do the opposite.
For this first ride, every white warp hole leads to the same place no matter which one you choose: Ultra Megalopolis.
Ultra Megalopolis
On the other side of the wormhole is a city built entirely from black, prism-shaped towers, all of it lit only by the artificial light shining out of Megalo Tower at its center. This is the Ultra Recon Squad's home, and here you meet the other two members of the squad, Phyco and SolieraUS/Dulse and ZossieUM, who have been equipping you for the trip across dimensions.
Megalo Tower
The tower stands at the center of Ultra Megalopolis, and it takes an elevator ride and a climb up a final staircase to reach the platform at the top. There, the light Necrozma tore free of Nebby overwhelms it, and it undergoes Ultra Burst, transforming into its true dragon-of-light form.
VS Necrozma
Ultra Necrozma cannot be caught or fled from here: you have to defeat it. Its Neuroforce Ability boosts the power of any of its moves that are already supereffective, and Photon Geyser hits as whichever of Attack or Special Attack is higher for it, ignoring your Pokémon's Ability in the process.
Necrozma disappears once the battle ends, and light pours back into the tower and out across Ultra Megalopolis. From here on, talking to PhycoUS/ZossieUM at Ultra Megalopolis lets you choose whether you ride Solgaleo or Lunala on future trips through Ultra Warp Ride. They also give you a Poipole.
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With Necrozma gone, you return to the Altar of the SunneUS/Altar of the MooneUM and receive three Beast Balls from Lusamine. Lusamine and Lillie then take the weakened Nebby back to Aether Paradise for treatment, leaving you to wonder where Necrozma has gone.
| This article is part of Project Walkthroughs, a Bulbapedia project that aims to write comprehensive step-by-step guides on each Pokémon game. |