Shiny Genesis Supernova

Here's the video of Genesis Supernova (Mew's Z Move, as well as the Z Move Fluttershy's Mew can use), using my legit Shiny Mew (Yes, Mew CAN legitimately be shiny. You could fight it on an event only island, called Mirage Island, in Emerald, so if someone was patient enough and reset the game enough times, the player could catch a Shiny Mew).