After over 50,000 resets for Shiny Celebi on VC Crystal I decided to see what other shiny Mythical Pokemon I could possibly hunt, if any at all. I come to realize that Manaphy could be shiny from the Ranger games. I only ever played Ranger 3 for the Deoxys as it was the only Pokemon I needed from it back then. After looking through my 3DS games today I come to notice I didn't have any hatched Manaphy and all mine we're from Wi-Fi Events. So checked my Ranger 3 carts and I realized I still have the Manaphy Egg, Heatran, and Shaymin available still. I couldn't believe my luck.
So my question: I just keep trading it to new save files until it finally hatches shiny right?
Also my second question is regarding CHANNEL Jirachi. I noticed Bulbapedia states that "due to a glitch it can be shiny". I also notice this guide states "Reset EUR-RS". So do I just send a Jirachi from Channel, if it's not shiny start the Ruby/Sapphire game again and try again? Also is there any further information on why it can be shiny and what/why the glitch occurs? Also any statistics on how rare the Jirachi is etc? I cannot seem to find much on the Channel Jirachi.