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Pokemon Go an Inter-Egg-Sting Development Research

Trainers, the world-famous Pokemon Go miners discovered a new six-stage Research in the GM. This Research goes by the name of An Inter-egg-sting Development featuring Strange Eggs, Shadow Pokemon, Shadow Mewtwo.

The An Inter-egg-sting-Development Research is six-stage research featuring various quests, Shadow Pokemon, and Strange Eggs as rewards.

Now, back in February 2020, PokeMiners discovered a Team Go Rocket Egg in Pokemon Go’s GM file and our guess is that Shadow/Strange Egg will be available from Team Go Rocket PokeStops and we must a certain distance to hatch it and eventually end up getting a Shadow Pokemon.

An Inter-egg-sting Development Research Tasks and Rewards


  • Spin 5 PokeStops: x500 Stardust
  • Defeat 3 Team Go Rocket Grunts: x500 Stardust
  • Catch 1 Shadow Pokemon: Meowth encounter
  • Rewards: x500 Stardust, x10 PokeBall, and x10 Razz Berry


  • Catch 5 Shadow Pokemon: 740 XP
  • Make 3 Nice Curveball Throws in a row: 750 XP
  • Purify 5 Shadow Pokemon: 750 XP
  • Rewards: x1,500 Stardust, x10 Great Ball, and Larvitar encounter


  • Defeat a TGR Leader 3 times: 1,000XP
  • Hatch 3 Eggs: 1,000 XP
  • Earn 5 Candies walking with your Buddy: 1,000 XP
  • Rewards: x1,500 Stardust, x3 Golden Razz Berry, and Pokemon encounter


  • Defeat Team GO Rocket Leader Arlo: 1250 XP
  • Defeat Team Go Rocket Leader Cliff: 1250 XP
  • Defeat Team GO Rocket Leader Sierra: 1250 XP
  • Rewards: x5 Super Potion, x1 Super Rocket Radar, and x3 Revive


  • Find the TGR Rocket Boss: x2,500 Stardust
  • Battle the TGR Rocket Boss: x1,500 XP
  • Defeat the TGR Rocket Boss: x3 Silver Pinap Berry
  • Rewards: x3,000 Stardust, x1 Charged TM and x1 Fast TM


  • Claim Reward: 2,000 XP
  • Claim Reward: 2,000 XP
  • Claim Reward: 2,000 XP
  • Rewards: x3 Revive, x20 GreatBall and x1 Elite Charged TM

NOTE: You must complete the “Looming in the Shadows” Research in order to be able to participate in the An inter-egg-sting Development Research.

Check out the storyline below, thanks to PokeMiners:

An Inter-egg-sting Development

Hey there, %PLAYERNAME%! It’s good to see you, though I’m sorry it has to be under such dire circumstances.

What circumstances, you ask? Well, it appears as if Team GO Rocket is—you guessed it—stirring up more trouble!

We’ve just received word that they’re doing something strange at PokéStops.

What exactly they’re doing—and to what end—is what we need to figure out. Let’s get out there and see what we can find!

Welcome back, %PLAYERNAME%. It looks like Grunts aren’t involved in whatever new experiments Team GO Rocket is performing.

As you might recall, Grunts use Shadow Pokémon, which are Pokémon that have been trained in unnatural and harmful ways to become incredibly powerful.

We’ve heard rumors that Arlo was the one who spearheaded the Shadow Pokémon program not long after he parted ways with Candela and Team Valor.

More recently, Spark discovered that Team GO Rocket may be hatching a plot involving Pokémon Eggs! Is Arlo involved in this, too?

Let’s investigate more PokéStops and purify some Shadow Pokémon while we’re at it. Something is bound to come up!

Great job saving and purifying those Shadow Pokémon, %PLAYERNAME%!

I noticed you caught a Larvitar. It’s highly unusual to see one in the wild. Maybe it came from one of the Pokémon Eggs that Team GO Rocket has been collecting…

While you were out battling Grunts, the team leaders and I discovered that Team GO Rocket has been collecting a mysterious kind of Pokémon Egg we’re calling Strange Eggs.

It appears that mostly Poison- or Dark-type Pokémon hatch from these Eggs. Let’s save and hatch as many Strange Eggs as possible before Team GO Rocket is able to grow their ranks!

The Team GO Rocket Leaders seem to be guarding these Strange Eggs, so let’s start by finding them. Be sure you have space for Eggs and some Incubators at the ready!

Great job defeating those leaders, %PLAYERNAME%! You’ve saved some pretty cute Pokémon in the process, if I do say so myself.

While you were off fighting Team GO Rocket, Spark and I did some more sleuthing and discovered that Sierra might actually be the brains behind the Strange Eggs!

It appears there’s more to a Team GO Rocket Leader’s duties than just taking over PokéStops and challenging Trainers to battle.

First Arlo with Shadow Pokémon, and now Sierra with these Strange Eggs… I wonder what else Team GO Rocket’s got tucked up their sleeves.

This doesn’t sit well with me, %PLAYERNAME%. Let’s track down those leaders again! We have to do all we can to disrupt their plans!

Incredible work, %PLAYERNAME%! Hopefully that’ll keep them at bay for a little while.

I managed to craft another Super Rocket Radar for you that’ll help you track down Giovanni. But be careful—according to a field report from Blanche and Candela, he’s got Shadow Mewtwo with him!

You might have encountered Shadow Mewtwo the last time Giovanni appeared. We’d thought that was the last we’d see of it, but it looks like it’s back!

You need to save Shadow Mewtwo, Trainer! I have a feeling Giovanni plans on using this poor Pokémon for nefarious ends.

Celebrations are in order, %PLAYERNAME%. You’ve done it again—you’ve defeated Team GO Rocket’s Grunts, its leaders, and even Giovanni!

Not to mention all the Shadow Pokémon you saved along the way, including Shadow Mewtwo!

This is probably not the last that we’ll see of Giovanni or Team GO Rocket, but that also means there’ll likely be more Strange Eggs to collect and Shadow Pokémon to save! Let’s get cracking, Trainer!

That’s all we have so far, so make sure to come back and visit us again.

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Dejan Kacurov

Hey there, I'm Dejan! Let me take you through my life, where family, gaming, and CrossFit play prominent roles. Since day one, I've been surrounded by the love and support of my family. Growing up, every moment spent with my parents and siblings was filled with warmth and laughter, creating memories I hold dear. As a parent now, I've experienced a whole new level of love and responsibility. My two wonderful kids bring endless joy and a sense of purpose to my life. In the digital realm, I found my passion - gaming. Whether I'm conquering the world of Apex Legends or embarking on adventures in Pokemon Go, gaming fuels my sense of adventure and competition. Beyond the virtual world, I discovered the exhilaration of CrossFit. The challenging workouts, camaraderie with fellow fitness enthusiasts, and constant drive to push my limits have become an integral part of my life. Balancing family time, gaming, and CrossFit has been a journey of self-discovery. Each passion complements the other, bringing fulfillment and joy to my daily routine.

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