Pokémon GO Halloween 2026 Guide: Rewards, GO-Pass & Shiny Greavard

Your complete guide to the two‑phase Halloween event, limited costumed Pokémon, shiny debuts, GO‑Pass rewards, and useful gameplay advice.

Table of Contents

• Introduction
• Full Event Schedule & Critical Deadlines
• Part 1 Highlights: Costumed Pokémon & Trick-or-Treat Mechanic
• Halloween GO-Pass: Free vs Deluxe Paid Tier Breakdown
• Part 2 Update: Shiny Greavard Debut & Mega Sableye
• Practical Farming Strategy For Different Player Groups
• Author’s Independent View: Strengths & Weaknesses
• Beginner Frequently Asked Questions
• Final Summary

Introduction

Pokémon GO’s Halloween 2026 celebration has arrived as a two‑phase seasonal event packed with collectibles, bonus multipliers, raid content, and a brand‑new map surprise feature. This guide sorts through all available rewards, clarifies confusing rules, and shares practical advice tailored for casual trainers, shiny collectors, and players willing to buy the deluxe GO‑Pass.

The event introduces three limited costumed Pokémon, the global shiny debut of Greavard, a Mega Chandelure raid day, the returning Mega Sableye raid, and the new Trick‑or‑Treat pop‑up mechanic. The Halloween GO‑Pass runs alongside the event and offers separate reward tracks for free and paying players, with strict deadlines many trainers often overlook.

Full Event Schedule & Critical Deadlines

All listed times follow your device’s local clock, not Pacific Time or UTC. This detail matters because many players accidentally miss windows by relying on time zones from online articles.

• Halloween Part 1: 10:00 October 27 – 10:00 November 1
• Halloween Part 2: 10:00 November 1 – 20:00 November 5
• GO‑Pass progression cutoff: 20:00 November 5
• GO‑Pass reward claim deadline: 20:00 November 7
• Mega Chandelure Raid Day: October 31, 14:00 – 17:00

The two separate GO‑Pass deadlines are the most common pitfall. You can finish earning points up until November 5, but you still have two extra days to unlock and collect rewards before they expire permanently on November 7.

Part 1 Highlights: Costumed Pokémon & Trick-or-Treat Mechanic

Phase one focuses on three newly released costumed Pokémon, all available in their shiny forms from launch. Costume Pikachu with formal attire and ribbon Hatterene appear in one‑star raids, while top‑hat Zubat spawns widely in the wild for the full Part 1 window. Limited spawns of mischief‑themed Piplup and Drifloon also appear on the map at rare rates.

The new Trick‑or‑Treat mechanic triggers randomly as you move around the overworld map. Tapping the pop‑up gives a random prize pool that includes Pokémon encounters, regular candy, and rare candy. There is no fixed cooldown, but rewards are fully randomized, so you cannot reliably farm specific prizes from it.

Part 1 also includes themed field research you collect by spinning PokéStops, plus timed research tasks that vanish once the event period ends. Trainers can join one‑star raids for the costume creatures and prepare for the special Mega Chandelure raid day on October 31.

Halloween GO-Pass: Free vs Deluxe Paid Tier Breakdown

Every trainer automatically gets the free GO‑Pass track. At rank 10, you unlock 2× candy for catches. At rank 20, you unlock 2× stardust for catches. The free path also grants occasional Poké Balls, potions, revives, and themed Pokémon encounters.

The deluxe track costs $7.99 and upgrades those multipliers to 3× catch candy at rank 10 and 3× catch stardust at rank 20. It adds extra rewards such as XL Candy, premium raid passes, and exclusive trainer avatar clothing including pastry‑themed tops and bottoms. It also speeds up point gain so you can hit milestone ranks faster.

It is important to set realistic expectations. The deluxe pass does not guarantee shiny Pokémon, it does not add extra raid encounters, and it cannot help you skip the work required to climb GO‑Pass ranks.

Part 2 Update: Shiny Greavard Debut & Mega Sableye

When Part 2 begins on November 1, all three Part 1 costume Pokémon leave wild and raid pools. The biggest draw for this phase is the global shiny debut of Greavard, which can appear from wild spawns and research encounters for the rest of the phase window.

Mega Sableye becomes available in Mega raids during Part 2, giving trainers a new powerful mega evolution to chase. The GO‑Pass reward bonuses you already unlocked stay active, while the task list refreshes with Part 2 themed objectives to keep earning extra points until the November 5 cutoff.

Practical Farming Strategy For Different Player Groups

Free‑to‑play casual trainers should focus first on reaching GO‑Pass rank 10 for the double candy bonus. Rank 20 for stardust is nice, but not mandatory if you only have limited playtime. Save your lucky eggs for after activating the catch multipliers to maximize gains.

Shiny collectors should prioritize Part 1’s limited costume Pokémon first. These variants usually return on unpredictable schedules, and there is no guarantee they will appear again soon. Save Part 2’s shiny Greavard hunt after you have secured the costume targets you want.

Players considering the deluxe pass should only buy it if they can commit enough time to hit both rank 10 and rank 20 before the progression cutoff. Without the time to climb ranks, the paid version will not deliver its advertised triple bonus value. Use Trick‑or‑Treat pop‑ups passively while walking, instead of planning long grinding sessions around them.

Author’s Independent View: Strengths & Weaknesses

This Halloween event has several strong points. The free GO‑Pass track gives meaningful multiplicative rewards to players who spend no real money, which keeps the event accessible. The two‑phase layout balances limited costume collection, shiny debut excitement, raid content, and resource farming for different player hobbies.

Still, the design carries clear downsides. The Trick‑or‑Treat system is entirely random with no reward guarantee, which can feel unrewarding on longer walks. Locking the deluxe triple bonuses behind rank progression means paying players still face heavy grinding. It is also frustrating for collectors that costume Pokémon have no confirmed return date.

Separating pass progression from purchase is a double‑edged sword. It prevents players from buying instant overpowered bonuses, but it also creates disappointment for anyone who spends money and cannot find time to grind ranks before the deadline.

Beginner Frequently Asked Questions

Q: Do candy and stardust multipliers apply to hatching or transferring Pokémon?
A: No. The catch bonuses only activate for Pokémon you capture directly. Hatching and transfers are not affected.

Q: If I finish GO‑Pass progress before November 5, can I still claim rewards after progression deadline?
A: Yes. Completed rewards stay available for claiming until November 7.

Q: Will Part 1 costume Pokémon disappear forever after the event?
A: They leave spawn pools after Part 1 ends. Niantic has not confirmed future return windows.

Q: Is Shiny Greavard available in Part 1?
A: No. Shiny Greavard only unlocks starting in Part 2.

Final Summary

Pokémon GO Halloween 2026 splits its content cleanly across two phases, with costume Pokémon in the first half and shiny Greavard plus Mega Sableye in the second. The GO‑Pass system offers resource multipliers, but always remember the difference between the November 5 progression cutoff and the November 7 reward claim deadline.

You do not need to complete every task, collect every shiny, or buy the deluxe pass to enjoy the event. Set goals that match how much time you can play, and avoid burnout chasing every limited item at once.