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>thinking Nutchan is actually a new Pokemon
Guys, they've already given us enough clues. It turns into a Ditto every time you try and catch it in PoGo. It already has a ditto body. Obviously Ditto is trying to transform into the new Gen 8 Pokemon but can't quite get it right, so only the head and the tail change while the goo body remains the same (although changes color). The new Gen8 Pokemon obviously looks different and this is them just giving us an adorable and honestly pretty cool and creative sneak-peak at what it's gonna look like. Once the design of the new Gen 8 Pokemon is officially revealed, Nutchan will be obsolete as a promotional tool and will be soon forgotten.