Should You Choose Spark or Sierra in the Pokemon GO Holiday Part 1 Research?

Author: Joshua Jan 19,2025

In Pokemon GO's Holiday Part 1 branching research, trainers face a choice: aid Spark or Sierra. While Niantic's official announcement omits this free research (available December 17-22, 9:59 AM local time), it's a key part of the event. After completing the initial tasks, players must select their path.

Choosing Spark or Sierra: A Matter of Type and Rewards

The core difference lies in the Pokémon type focus and reward encounters. The choice isn't drastically impactful, but it affects which Pokémon you'll prioritize catching.

Spark's Ice-Type Challenge

Pokemon GO Spark

Image via Niantic

Selecting Spark directs you towards Ice-type Pokémon. Part 2 rewards an Alolan Vulpix encounter.

Spark's Research Tasks: Part 2

Research Task Reward
Catch 10 Ice-Type Pokémon 10 Pinap Berries
Take 5 snapshots of wild Pokémon 20 Poké Balls
Complete 5 Field Research Tasks 500 Stardust
Complete All Three Tasks Alolan Vulpix & 2000 XP

Spark's Research Tasks: Part 3

Research Task Reward
Catch 25 Ice-Type Pokémon 10 Ultra Balls
Power Up Ice-Type Pokémon 10 Times 1 Golden Razz Berry
Collect MP from 3 Power Spots 100 Max Particles
Complete All Three Tasks Sandygast, 3000 XP, 2000 Stardust

Note: Part 3's final reward (Sandygast) is consistent regardless of your choice.

Sierra's Fiery Pursuit

Pokemon GO Rocket Leaders

Image via Niantic

Choosing Sierra focuses your efforts on Fire-type Pokémon, culminating in a Shadow Vulpix encounter in Part 2.

Sierra's Research Tasks: Part 2

Research Task Reward
Catch 10 Fire-Type Pokémon 10 Pinap Berries
Take 5 snapshots of wild Pokémon 20 Poké Balls
Complete 5 Field Research Tasks 500 Stardust
Complete All Three Tasks Shadow Vulpix & 2000 XP

Sierra's Research Tasks: Part 3

Research Task Reward
Catch 25 Fire-Type Pokémon 10 Ultra Balls
Power Up Fire-Type Pokémon 10 Times 1 Golden Razz Berry
Collect MP from 3 Power Spots 100 Max Particles
Complete All Three Tasks Sandygast, 3000 XP, 2000 Stardust

Your decision hinges on your preferred Vulpix variant and the Pokémon type you wish to concentrate on during the Holiday Part 1 event. Pokemon GO is available now.