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Pokémon Go - An Inter-egg-sting Development quest tasks and rewards explained

Our guide to October 2020's Team Go Rocket quest.

An Inter-egg-sting Development continues the story-line of the Team Go Rocket invasion in Pokémon Go that began in A Troubling Situation back in July 2019.

After a short break since May 2020, the monthly Team Go Rocket quest returns, where we once again help Professor Willow investigate why Team Go Rocket are invading the PokéStops.

This will lead you to fighting the three Team Go Rocket Leaders - Cliff, Arlo and Sierra - and eventually, Giovanni himself.

Completing each step will also reward you with a collection of experience and items that will help continue your Pokémon Go journey.

On this page:

How An Inter-egg-sting Development works in Pokémon Go

An Inter-egg-sting Development, which appeared in October 2020, is the latest in a line of Team Go Rocket monthly quests.

Once you have completed the opening 'tutorial' quest, A Troubling Situation, you will then start the latest Team Go Rocket quest, of which there is a new one which cycles in each month.

This means if you complete the previous Team Go Rocket quest in October 2020, An Inter-egg-sting Development is what will start next. If you don't, and say finish in November or December, you'll jump to that month's quest, and skip An Inter-egg-sting Development entirely.

Don't worry if you miss out on a previous month - they are almost entirely the same in their content and rewards, and is simply designed to encourage players to complete them regularly.

These monthly quests are centred around Team Go Rocket and their horde of Shadow Pokémon, which are invading PokéStops around the world, and sees you face Leaders Arlo, Cliff and Sierra and eventually, Giovanni.

The three Go Rocket Leaders are Cliff, Arlo and Sierra.

Otherwise, these work the same as other research quests in the game, where you have to complete story-driven tasks in order.

There is no time limit to finishing An Inter-egg-sting Development - and once it concludes, you'll then begin the latest Team Go Rocket quest when it becomes available.

An Inter-egg-sting Development quest steps in full

Here are the quest steps and rewards for An Inter-egg-sting Development. Be warned - there are spoilers below if you don't want to learn both the challenges and rewards for each step of this quest.

'An Inter-egg-sting Development' Step 1 of 6

Rewards: 500 Stardust, 10 Pokéballs, 10 Razz Berries

'An Inter-egg-sting Development' Step 2 of 6

  • Catch 5 Shadow Pokémon (750 XP)
  • Make 3 Nice Curveball Throws in a Row (750 XP)
  • Purify 5 Shadow Pokémon (750 XP)

Rewards: 1,500 Stardust, 10 Great Balls, Larvitar encounter

'An Inter-egg-sting Development' Step 3 of 6

  • Defeat a Team Go Rocket Leader 3 times (1000 XP)
  • Hatch 3 Eggs (1000 XP)
  • Earn 5 Candies walking with your buddy (1000 XP)

Reward: 1,500 Stardust, 3 Golden Razz Berries, Toxicroack encounter

'An Inter-egg-sting Development' Step 4 of 6

Reward: 5 Hyper Potions, Super Rocket Radar, 3 Revives

'An Inter-egg-sting Development' Step 5 of 6

  • Find the Team Go Rocket Boss Giovanni (2,500 Stardust)
  • Battle the Team Go Rocket Boss (1,500 XP)
  • Defeat the Team Go Rocket Boss (3 Silver Pinap Berries)

Reward: 3,000 Stardust, 1 Fast TM, 1 Charged TM

'An Inter-egg-sting Development' Step 6 of 6

All three objectives will already be complete granting you 2,000 XP each.

Rewards: 3 Max Revive, 20 Ultra Balls, 1 Elite Charged TM

Thank you to redwineandbeer on reddit for the help with these objectives.


The Season of Go has arrived! The Bug Out! event has brought us the release of Grubbin, Charjabug and Vikavolt in Pokémon Go, while Mega Scizor makes its debut appearance in Mega Raids. Knowing how to evolve Wurmple will also come in handy during this event. You can use Daily Adventure Incense for the chance of encountering Galarian Articuno, Galarian Zapdos and Galarian Moltres. There's also a new special research quest - A Mysterious Incense. While Go Fest 2022 may be behind us, there are still three special research quests you might be working on - Pokémon Go Fest 2022, Rhi's Arrival and A Radiant World. This season has also seen the lowering of the requirement for Candy XL and introduced the first Ultra Beast, Nihilego, along with new Prime Gaming rewards every fortnight.


Other things to know about An Inter-egg-sting Development in Pokémon Go

Here are some tips to help you complete An Inter-egg-sting Development:

  • Completing the Inter-egg-string Development quest is a perfect time to get the newly added red 'strange' 12km Eggs, which are rewarded when you defeat a Leader.
  • Stock up on Potions and Revives before fighting a Team Go Rocket Grunt, because Shadow Pokémon are far stronger than regular Pokémon. That said, you can usually brute force them with your most powerful creatures, so don't worry too much about countering with types.
An Inter-egg-sting Development debuted alongside October 2020's Autumn event.
  • However, Team Go Rocket Leaders are a lot stronger than any of the Grunts, so make sure your chosen Pokémon is good matchup for their Pokémon!
  • Once you've made a Rocket Radar you can't collect any more Mysterious Components until its used, so keep an eye on the contents of your bag.

Good luck foiling Team Go Rocket's evil plans - again!

About the Author

Matthew Reynolds avatar

Matthew Reynolds

Managing Editor

Matthew edits guides and other helpful things at Eurogamer.net. When not doing that, he's out and about playing Pokémon Go or continuing to amass his amiibo collection.

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