Originally Posted by Accent
Ho-oh existed since gen 1 (Remember the glowing bird thing when Ash started his journey in the very first episode of the anime?), yet it never appeared in gen 1 pokedex :>
IMO that means that Gen 2 was planned all along!
Infact. 2nd gen might as well be one of the most, post planned games in the entire series. Which was why it was one of the best.