Postgame Tier #1: Filler
Make your way to the nightclub in North Obsidia Ward. In true West German fashion, all of the previous Schutzstaffel members are now members of the government! After a small cutscene explaining how the postgame works, you can make your way up to where Arc is and interact with the switch next to the scientist to turn off the stupid lights.
If you skipped over it or just didn't pay attention, Reborn's postgame is a glorified legendary catching checklist. You have to fight (and, optionally, catch) every single legendary and mythical in the game. Fun.
Within the actual nightclub there are a few extra things; there's the Battle Factory (yuck), the Battle Pavillion (yuck), and the Battle Palace (yuck). If you speak to the dev-insert next to the door at the back instead, you have the Theme Team selector which is way more interesting and the Mix n Match which lets you fight alongside anyone you haven't insulted on the way. If you've done it right, that should be... everyone in here except the stupid DJ. I recommend putting this off for a bit because all of the teams here do indeed use the legendaries you're going to capture, but if you want to grind a bit you can spend your hard-earned BP on useful items like Glitter Balls (which turn all caught Pokémon shiny) or other miscelleneous battle items.
Talk to everyone in here for some dialogue about your disappearance too. I recommend doing this every time somebody new appears as, admittedly, some of them are funny (and some of them, like Cal's, are dogshit).
Anyway, the way this works is simple. The legendaries are organised into roughly seven tiers, with All-Gen adding some extra events for the new Generation 8 and 9 legendaries. Some legendaries have full real quests, whilst a lot are simply filler. Furthermore, the level cap has been extended all the way up to level 150; each tier adds another five levels. You're already at Level 105 now actually, so you might as well level up your team. I doubt you'll be using it for long...
In addition, the postgame changes a lot based on if you're on Lin's route or Anna Smiles. This guide will cover both whenever relevant. Finally, these quests are ordered roughly in a "most" to "least" annoying order, so you can do all the terrible unfun quests first.
To get started, walk over to the right side and talk to the dev-insert (I've seen your code. I'm not a fan of you.) to start the first quest.
Cresselia
Strictly speaking, the Cresselia quest is actually tier zero. Make your way to the Vanhanen Mansion and enter the New World gate within; you'll get a cutscene explaining the lore about the New World. There's nothing really to "walk through" here; there's only one path available and no puzzles here. The stones outside each door have a "number" inscribed on them to show you the way, if you get lost. You'll always rescue Noel and Serra; if you're on the Lin route, you'll also find Anna too (who you can't rescue yet).
Once you've rescued everyone available, you can find Anomaly Cresselia in the last area. Anomaly Pokémon are essentially teams of six strong Pokémon as well as a legendary that you have to beat before you can catch the legendary itself. If you're going for shinies, you can save inbetween the Anomaly battle and the legendary itself to reset if you're quick enough. Consider cheating in a hundred Reborn balls (this game's version of Master balls).
Anomaly Cresselia
| Sprite | Name | Level | Ability | Held Item | Moves | EVs |
|---|---|---|---|---|---|---|
|
|
Lunatone | 105 | Levitate | Focus Sash |
|
0/0/0/252/4/252 |
|
|
Amoonguss | 105 | Regenerator | Black Sludge |
|
252/0/252/4/0/0 |
|
|
Musharna | 105 | Synchronize | Leftovers |
|
252/0/252/4/0/0 |
|
|
Jumpluff | 105 | Infiltrator | Flying Gem |
|
0/252/0/0/4/252 |
|
|
Cresselia | 105 | Levitate | Focus Sash |
|
All 252 |
|
|
Celesteela | 105 | Beast Boost | Magical Seed |
|
252/0/128/0/128/0 |
After beating it, Luna will give you the Gather Cube which can be used for storing Z Cells. Choose to accompany her back to the Nightclub to get your first set of Tier 1 quests. Also, your level cap has been raised to 110.
The Golems
This one is an actual puzzle! Shame about how bad it is. The New World gate for the Regis is on Route 2... but it's blocked off by a Crustle. Fly to the Celestine Cascade and find the Rage Powder tree on the Rock Climb area nearby, then use the Rock Climb element to activate the Crustle and fight it to open up the cave at the bottom of the route.
Inside the New World here, you'll find Amaria studying an inscription. Regardless of route, she'll eventually tell you it's a Braille inscription and you need to find a blind person to read it. Not really sure how you were meant to figure this one out yourself, but you can find a blind person in the Coral Ward—who is very offended about being asked to read it. Putting aside that the game made somebody up to get mad at, talk to her and then return to the gate.
She tells you that there's a specific ritual to open up the paths ahead, but she won't just tell you it; you have to play a game of Simon Says. It is at this point you realise that you are being roped into the author's humilation fetish; thankfully, you can skip this by just speaking to her quickly and opting out... so do that instead.
This opens up a door in the middle of the suspiciously shaped island. Go through it to find the Anomaly Regis fight.
Golem Anomaly
| Sprite | Name | Level | Ability | Held Item | Moves | EVs |
|---|---|---|---|---|---|---|
|
|
Stakataka | 110 | Beast Boost | Leftovers |
|
252/252/0/0/4/0 |
|
|
Tyranitar | 110 | Unnerve | Ground Gem |
|
252/252/0/0/4/0 |
|
|
Mawile | 110 | Huge Power | Mawilite |
|
252/252/0/0/4/0 |
|
|
Regirock | 110 | Clear Body | Choice Band |
|
All 252 |
|
|
Regice | 110 | Clear Body | Choice Specs |
|
All 252 |
|
|
Registeel | 110 | Clear Body | Magical Seed |
|
All 252 |
After you beat them, they'll flee further into the New World. Three more puzzles, fantastic!
The easiest one is to the bottom left of the New World; activate one of the braille tablets for another Simon Says puzzle. Skip it by talking to her again to open the door to Regirock. Jump onto the platform behind it to find Regieleki too, for good measure.
The platform to the right of the New World contains another stupid Simon Says game; skip it as usual to open the door to find Registeel and Regidrago.
The final one is actually a puzzle! Interact with the Braille stone, then follow the red arrow, then the blue arrow, and finally the green arrow. This unlocks the door to Regice.
When that's all done, leave the New World.
Filler #1: The Birds
Whilst some quests in this postgame have a modicum of effort put into them, some are blatant filler for the sake of catching legendaries. At least this time Zapdos is good enough to slot into your team. Anyway! The first quest in Tier 1 Postgame is to catch the three kantonian legendary birds.
This is a short and sweet one; they're not anomalies, so you can immediately find them and catch them at the appropriate locations.
- Kantonian Moltres is found at the top of Pyrous Mountain.
- Galarian Moltres is found... ALL the way in the Ruby Area of Victory Road. (Fucking really?) Where you previously fought Sirius.
- Kantonian Articuno is found at the very top of Ametrine Mountain.
- Galarian Articuno is found at the upper waterfall area of the Iolia Valley.
- Kantonian Zapdos is found in the Yureyu Power Plant.
- Galarian Zapdos is found on the other side of Route 2.
Once you've done this quest, you can speak to Lumi in the nightclub and show her the Articuno to get the Galarian Feather, in case you wanted a second Galarian version of your birds for some reason. I think this is a quest remnant so by the time you read this it might've been patched out!
Filler #2: The Lake Guardians
This one is pretty low effort. Do you remember how to get into Azurine Lake? If not, go back to the Chapter 17 walkthrough (Badge #14, Pt 1: Neo Reborn City) and expand the Klefki Quest collapsible. You also need a Pokémon that knows Blizzard (it doesn't have to be good).
None of these are anomalies either, so you can immediately catch them.
Azelf Location
Find this fisherman. Surf directly upwards.
You'll find a sandy area with a single tile open at the top. Enter the inside of the lake and dive down.
Surf upwards to this sign. Surface in the area above it, then go straight north to find a sandy area where you can find Azelf.
Uxie Location
Surfing upwards from Apophyll Academy, it curves towards the right; you can find this sand area with a single accessible tile. Walk across, surf and dive down, then cross the grassy area directly north to resurface in a different part of the lake.
At the northwest of this area, you can find another sand bar with a single open tile to the next segment of lake. Enter this, dive, and then surf directly to the right where you will find Uxie hanging about underwater.
Mesprit Location
This one is a bit more involved. Enter the middle part of Azurine Lake from Peridot Ward as I detailed earlier in Chapter 17 and dive down; find this bright spot on the middle left part of the loop and resurface. You'll be in a small isolated part of the map; surf around to the right side to find a cave entrance. (Oops, looks like there's a Sunkern Switcher left in here!)
Inside the cave, there's a few waterfall areas; the first floor has some rapid water that you can't cross. Nuke a wild Pokémon whilst surfing with Blizzard to freeze over the ice, and then slide into the cave where you will find Mesprit.
You can also find TM57 Brutal Swing hiding behind a Level 100 Pyukumuku, and the Barbaracite up here.
Filler #3: The Legendary Beasts
The dogs are hanging around on Route 1. This means going through those fucking woods again. It's either that or sodomizing a cow. Well, there's an extra incentive—you can get the Paradox versions of the legendary beasts here, too. They're found as wild encounters in the respective New World area.
Here I'm going to introduce another feature I dynamically patch in; every anomaly Pokémon from here on has an appropriate field effect. (The only reason the Regis don't is because I beat them before I implemented this). Anyway!
This time they have actual anomaly teams. Entei's and Gouging Fire gate is on the roof of the Nature Centre.
Anomaly Entei
| Sprite | Name | Level | Ability | Held Item | Moves | EVs |
|---|---|---|---|---|---|---|
|
|
Aromatisse | 110 | Aroma Veil | Focus Sash |
|
252/0/4/252/0/0 |
|
|
Ursaluna-Blood Moon | 110 | Mind's Eye | Normal Gem |
|
252/0/4/252/0/0 |
|
|
Alcremie | 110 | Sweet Veil | Alcremite |
|
252/0/4/252/0/0 |
|
|
Magcargo | 110 | Solid Rock | Leftovers |
|
4/0/252/252/0/0 |
|
|
Primarina | 110 | Torrent | Choice Specs |
|
252/0/4/252/0/0 |
|
|
Entei | 112 | Pressure | Life Orb |
|
All 252 |
You can find the gate to Suicune in South Aventurine Woods, near where you picked up the guy's glasses before. Check the walkthrough for Route One for how to get there.
Anomaly Suicune
| Sprite | Name | Level | Ability | Held Item | Moves | EVs |
|---|---|---|---|---|---|---|
|
|
Ludicolo | 110 | Swift Swim | Elemental Seed |
|
4/0/0/252/0/252 |
|
|
Alomomola | 110 | Hydration | Elemental Seed |
|
252/0/4/0/252/0 |
|
|
Goodra-Kalos | 110 | Sap Sipper | Elemental Seed |
|
252/0/0/252/4/0 |
|
|
Lapras | 110 | Hydration | Elemental Seed |
|
0/252/252/0/0/4 |
|
|
Heliolisk | 110 | Dry Skin | Elemental Seed |
|
4/0/0/252/0/252 |
|
|
Suicune | 112 | Pressure | Elemental Seed |
|
All 252 |
Finally, you can find the gate to Raikou in North Aventurine Woods, near the entrance by the hiker. You'll need a Tauros to hop up the ledge to the berry area.
Anomaly Raikou
| Sprite | Name | Level | Ability | Held Item | Moves | EVs |
|---|---|---|---|---|---|---|
|
|
Rotom-Frost | 110 | Levitate | Icium-Z |
|
0/0/252/252/4/0 |
|
|
Froslass | 110 | Cursed Body | Froslassite |
|
4/0/0/252/0/252 |
|
|
Porygon2 | 110 | Download | Eviolite |
|
4/0/0/252/0/252 |
|
|
Gliscor | 110 | Hyper Cutter | Elemental Seed |
|
4/252/0/0/0/252 |
|
|
Togekiss | 110 | Hustle | Leftovers |
|
4/0/0/252/0/252 |
|
|
Raikou | 112 | Pressure | Telluric Seed |
|
All 252 |
Congratulations! You beat Tier 1.