Click the green flag repeatedly until you get the shiny, but don't click too fast or you might fail the shiny. Chances are a 1 in 100 for shiny. The Pokémon was pikozapp in the real version but I switched it to arceus in my remix
Thank you to @foxyrocksy41 for making the original version. Shoutout to @31whitechaw for getting it in 1 click