I'm gonna do you a favour and point out that the bit that makes it shiny is most likely set, otherwise roughly one in every 8000 games would have a blue one...Hmm...I wonder. If you SR the Red Gyarados Event...could you get a regular Gyarados instead? Imma try and see. ^_^
I'm gonna do you a favour and point out that the bit that makes it shiny is most likely set, otherwise roughly one in every 8000 games would have a blue one...