Pokemon GO Halloween 2026 Spoofing Full Details: Part I vs Part II at a Glance

Two back-to-back events this year instead of one long stretch. Part I runs Tuesday October 27 at 10:00am local time through Sunday November 1 at 10:00am. Part II picks up immediately after, running November 1 at 10:00am through Thursday November 5 at 8:00pm. The GO Pass: Halloween 2026 covers the whole span, October 27 to November 5, so you’ve got roughly 10 days of continuous event content if you’re spoofing across regions to catch everything. Part I is about the new costumed trio and candy farming. Part II is where shiny Greavard and Mega Sableye’s Super Max unlock land.

Treat them as two separate shopping lists rather than one event, because the spawn pools genuinely swap over at the midpoint.

Part I Costumed Debuts: Pikachu, Zubat and Sinistea

Three brand new costumes make their first appearance in Part I. Pikachu wearing a hat and capelet and Sinistea wearing a bow both show up in one-star raids, while Zubat wearing a top hat appears as a wild spawn. All three can be shiny, which is the part worth planning around since costumed shinies tend to get retired from easy availability once the event ends.

If you’re hopping raids for the Pikachu and Sinistea costumes, prioritise gyms with fast respawn cycles over driving further for quantity, since one-star raids reset quickly and local hopping beats long-distance teleporting for raw catch volume.

Part I Wild Spawns and the Trick-or-Treat Mechanic

Wild spawns during Part I include Zubat wearing a top hat, Duskull, and Piplup wearing a Halloween Mischief costume, with a rare chance at Drifblim in the same costume. All of these can be shiny. Niantic also brought back the Trick-or-Treat mechanic: spooky surprise items appear on the map and tapping them gives a chance at event-themed encounters, Pikachu/Zubat/Sinistea candy, or Rare Candy. For spoofing routes, these surprise items spawn alongside regular wild Pokemon rather than needing a separate pass, so a normal walk-and-catch loop around a dense Pokéstop cluster picks them up naturally without extra setup.

Part I Raid Lineup

One-star raids are where you’ll find costumed Pikachu wearing a hat and capelet and Sinistea wearing a bow, both shiny-capable. Running alongside the Halloween rotation, the October raid schedule also has Mega Sableye in Mega Raids from October 28 through November 3, which overlaps both event halves. If you’re already teleporting for Halloween content, it’s worth checking gyms for Mega Sableye at the same stops since the timing lines up almost exactly with the holiday window.

Part II: Shiny Greavard Debuts

Shiny Greavard makes its first-ever Pokemon GO appearance in Part II, encounterable in the wild, through GO Pass tasks, and via Field Research. Houndstone, Greavard’s evolution, also gets its shiny debut this way since evolving a shiny Greavard with 50 candy produces a shiny Houndstone. If shiny-hunting Greavard is the priority, Field Research tasks are the more reliable route since wild spawn shiny rates are unboosted base rates unless Niantic states otherwise, and research-guaranteed encounters remove the RNG on whether you even see the Pokemon at all.

Part II Wild Spawns

Part II swaps the spawn pool to Litwick, Rowlet wearing a Pokémon Halloween costume, and Greavard, all shiny-capable. There’s also a rare chance at Gengar wearing a Spooky Festival costume showing up in the wild. This costume on Gengar is the standout chase target of the back half since it’s listed as a lucky/rare encounter rather than a common spawn, so routes built around high-density urban Pokéstop chains will outperform suburban routes for sheer encounter volume.

Mega Sableye’s New Super Max Level Explained

This is the headline mechanic of Part II. Starting with Halloween 2026 Part II, Mega Sableye can be powered up to Super Max level, a tier above the existing Max level. You have to get Sableye to Max (the third