Other mistake: On the defeat screen after you win against Team Rocket Go Leader Cliff, sometimes his Poké Ball will still be stuck to his hands, sticking out from his knuckles as if he's wearing it like a ring.
Revealing mistake: The player character model can be standing inside a Pokémon in the overworld if they cross paths, clipping through each other.
Bug: If you put on the Lugia mask, it has a long nose on the front. If you put on the Team Skull face mask under it, suddenly the Lugia mask is cut in half with most of the snout and nose missing. Despite the Skull Face Mask not interfering with the Lugia mask at all, they don't even touch. No other mask or face accessory causes this to happen with the Lugia mask.
Deliberate mistake: Regardless of where the position of the sun is or the shadows cast off the player and his buddy Pokémon, the Team Rocket Go hot air balloons always cast a perfect round shadow directly beneath them. No elongation or shifting due to the light source. This is obviously done so the player always knows when one is overhead, but it still is a mistake in how shadows work.
Revealing mistake: The Alolan variant of the Exeggutor is portrayed as being so tall that its head is usually off screen above the camera, but when bending down for attacks you can still see it's head. If you defeat a gym while using the Alolan Exeggutor however, the victory screen will have it's head cut off much lower down and just disappearing into the void where it could still be seen otherwise.
Revealing mistake: If you equip the Poke Ball Grip pose for your character, and have a buddy Pokemon walking next to you, in the character screen your foot can be inside the Pokemon or leg going through them.
