If I'm not mistaken, mine was a Geodude.
I was playing Diamond and ran into a shiney graveler, I thought something was wrong with my screen.
Mew i had it on Yellow, then traded to crystal. It was Shiny!
My first shiny was a Voltorb on Emerald. This was before I knew anything about shinies and I seriously thought it was a glitch in the game... Noobprobz.
My first shiny ever was the Red Gyarados, but I've had several others.
Crystal: Cleffa, Elekid, Pichu, Stantler
Ruby: Swablu (Which I found last night, actually.)
Sapphire: Carvanha/Sharpedo (The Sharpedo's pink. ><)
Diamond: Shinx, Ralts
Platinum: Bidoof (><;;, Starly
I must be lucky or unlucky because a few of these shinies are crap pokemon. Like Bidoof...
I think my firts shiny was a Raticate I found in Pokčmon Gold back in 1999 I think. I found it outside the place where Zapdos is (sorry but I can't remember the english name of the place ). I was 9 at that time and I thought it was somehow "mutated" by the electricity of the zone. Then red Gyarados came but me and my friend knew it was a shiny pokčmon 2 or 3 years later.
My first shiny was a Red Gyarados on Pokemon Silver, I also have a shiny Wingull which i evolved into a Pelipper on Platinum, and also a shiny Magikarp on Platinum which is now a Red Gyrados. Also ran into a shiny Hariyama in Sapphire but it used whirlwind while attempting to catch it =/
My first legit shiny ever is a Chimecho in Pokemon Black
I was confused because I have turned the cheat off, but still
I've gotten a shiny pidgey and mareep in Silver.. And a shiny durant in White. I believe I got another one in one of the games but I can't remember :x
cool my first shiny was the riolu you get from riley in iron island
My first REAL shiny without the Action Replay was a link trade for a shiny Gabite wich is now a Lv. 100 Garchomp... but before i started a shiny hunt, it started when my friend had a random encounter with a shiny wurmple,I felt jelous even though I was a female character (friends sister game b4 mine) because he evolved it to Beautifly, then thats when the hunt began!
I will never forget my very first shiny. Probably because I still have him lol. I was lucky enough to hatch a shiny Eevee in Gold. At the time I was very young and only thought it was a cool colored Eevee. I remember thinking, "Oh man, I wonder what it'll look like if I evolve into Flareon." I had no clue about happiness or the two new eeveelutions. I was quite surprised when, while staying up late one night, my Eevee began to evolve without the use of a stone. I am still amazed at the sheer badassness of a shiny Umbreon. I have yet to see a cooler looking shiny, and I don't think I ever will. Eevee/Umbreon is my very first shiny.
“Video games are bad for you? That's what they said about rock n' roll.”
― Shigeru Miyamoto