It is an almost infamous amount of rarity. #1 – Feebas Feebas is one of the rarest Pokemon of all.
But, do not fear the law when it comes to this. Even AP-Protected ROMS (anti-piracy) that you bypass using a ROM hack on would not be illegal, as you legally own said ROM.
OpenEmu is a fantastic application, and you will surely need this. All you need is the ROM file and IPS patcher such as MultiPatch. If you are a fan of Pokemon ROM hacks, you surely can play your favorite hack on OpenEmu without problems.
