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so i was opposed to the inclusion of lintle in the next demo because i don't think we need to have all of our bug pokemon in the early game and it was never meant to be in the first forest. technically it didn't make the cut on the initial inclusion survey, which would imply it shouldn't be in the next demo, but somebody suggested it could be a gift pokemon and i think it's a good idea and a good compromise.
additionally i assume people would be excited if the gift egg had an increased shiny chance like they sometimes do in gamefreak games.