I wanted to Download Yellow forest event but I've been told that there is no way to get it now since the event has ended 3 years ago, so I wanted to know if there is any other way to download the event?
Well, you can always cheat. Sorry, but there is no way to download an event and pikachu can't learn surf or fly any other way. So the only way to get one is hack or trade from a hacked game.
Pikachu Can learn fly,through being awesome at Pokemon and at the Pokemon world championships,there was a pikachu with fly free to collect