Pokemon Go fans have been tearing their hair out trying to find a Ditto.
The shape-shifting Pocket Monster made its first appearance all the way back in 2016.
Catching this unique Pokemon has always been tricky, because it only ever appears in disguise.
Niantic explains more: “Professor Willow has finally discovered Ditto! Trainers all over the world have been reporting its appearance.
“Ditto has been known to disguise itself as other Pokemon, so keep an eye out, some Pokemon may actually be Ditto, and when you capture them, there’s a chance that Ditto will reveal itself.
“If you do encounter a Pokemon that is Ditto in disguise, the Pokemon in that specific encounter will also reveal itself as Ditto for other Trainers.”
But what started as a fun challenge to find a Ditto has transformed into a frustrating nightmare thanks to Special Research tasks.
You’ll need to catch a Ditto to complete the Mythical Discovery questline and get a Mew.
You’ll need a second Ditto if you want to finish the Let’s Go Meltan quest and capture Meltan.
If you’re struggling to catch a Ditto, don’t panic.
The shape-shifting Pocket Monster only ever disguises itself as certain Pokemon, including common spawns like Ratatta and Pidgey.
Indeed, every Ditto captured by Express Online has been disguised as Gen 1 Pokemon Ratatta, which can be found everywhere.
In addition to Pidgey and Rattata, other Gen 1 Ditto disguises include Zubat, Ghastly, Mankey and Paras.
You can also find Ditto in Gen 2 Pokemon Hoothoot, Sentret and Yanma, as well as Gen 3 Pocket Monsters Zigzagoon, Whismur and Gulpin.
With Gen 4 Pokemon still being drip-fed into the game, expect even more Ditto disguises in the future.