Alternately. Colored. Man, looking for a particular alt. colored Pokémon is nuts... Was the Shinx you found holding the Holy Grail? Once I found an alternately colored Natu in Gold, Silver or Crystal when looking for a Smeargle. It was pink in Stadium 2. I don't care much for weird-looking Pokémon... they look weird. Take a green Espeon I once battled...
Within the next three days, I will have access to any number of Game Boy - Game Boy Advance ROMs, with link cable power. Yes. I got kind of a head start, you could say. In Fire Red, I beat the Elite Four by a miracle, and my whole team is level 59... It would've been at least all level 65 by now but a saving error (see: I'm an idiot) set me back to around 57, except Lickitung at 39. I stopped playing, I'll continue after doing some stuff between it and Ruby.
Still haven't forgotten about Gold and Silver remakes. You know, in that Diamond/Pearl save editor I have, in which I created Your Doom*, you can edit a Pokémon's origin. You know, where it was caught. One of the locations is Johto.
*Golden Magikarp with Surf, Psychic, Thunderbolt, Ice Beam, the ability Wonder Guard, and ridiculously heightened stats. It's totally illegal and I'll never use it in a game I enjoy**. I've only made it for fun.
**My Prinplup, which I transformed into a Quilava using the save editor, is now Suffix's. "You really don't care at all for Diamond!"