Pokémon Go is offering a limited-time “Gigantamax Journey” research that rewards players with a choice between Gigantamax Rillaboom, Cinderace, or Inteleon. To claim this research, you’ll need to input the promo code on the Pokémon Go Web Store and complete five steps.
The research itself expires on August 24, so it’s essential to claim it as soon as possible. Once you redeem the code, you’ll be prompted in-game to choose one of the three Gigantamax Pokémon from your regular research screen. The reward for this research is a unique encounter with the chosen Pokémon.
All three options are viable choices, but it ultimately depends on which starter you’re missing or need candy for. If you have a collection of these already, you can pick based on your needs. Alternatively, if you participated in every Max Battle weekend and didn’t roll good IVs from battles, this research is an opportunity to score a good IV.
The “Gigantamax Journey” research has five steps, each with its own reward and requirements. The only difference between the steps is the candy and Pokémon received as rewards. Here’s what you need to do:
– Step 1: Collect MP from three power spots (812 XP)
Reward: Gigantamax Rillaboom/Cinderace/Inteleon encounter
– Step 2: Give your buddy a treat on seven different days
Reward: 400 Max Particles, Unlock a Max Move (400 Max Particles), Win a Max Battle (3,000 Stardust)
The remaining steps are time-locked and require further information to complete.
Source: https://www.polygon.com/pokemon-go-guide/615038/gigantamax-journey-promo-code-redeem-timed-research-steps-rillaboom-cinderace-inteleon