ウルトラシャイニー has been trademarked by the above mentioned companies roughly translating to "ultra Shiny"
what do you guys think this is related to ? I personally think its for the mainline Pokemon games.
serebii tweet :- Serebii Update: Nintendo, Creatures Inc. & Game Freak register a trademark for ウルトラシャイニー (Ultra Shiny) https://t.co/gDbXkHSvkT