If there's one thing they should have done with this remake, it should have been to make Celebi natively catchable. I mean, there is a shrine to it in Ilex Forest, make up some crazy set of conditions and make it appear there after those conditions are met

I have the exact same thoughts. It's silly that they haven't...or...maybe he's secret ala Arceus in Diamond/Pearl?

I still want every Pokemon to be catchable betwee Diamond, Pearl, Platinum, Heart Gold, and Soul Silver. Damn all events, everywhere.

iM AN EXPERT POKEMON PLAYER.  i ALMOST DO HAVE THEM ALL.  i TRACK THIS SEREBII DAILY.  oNE OF THE VERY FIRST THINGS WE WERE TOLD ABOUT hgss IS THAT CELEBII WILL BE AVAILABLE FOR DOWNLOAD OVER wifi BEFORE OR WHEN THE GAME IS RELEASED.  sO DON'T WORRY HE'LL BE AVAILABLE.  i HAVE 489 pOKEMON AND HE'S ONE i DON'T HAVE.  SO cELEBI WILL BE AVAILABLE.

Riolu?

I don't know, why would this really get anybody to want the game more?

It's Serebii's Celebi from Diamond/Pearl/Platinum. It's the 10th Anniversary one he got (he lives in the UK, and yes, the UK got Celebi too). If you search the HeartGold/SoulSilver section, you can even see on the Celebi's status page (on Serebii's in-game screenshots) with the English named, "Celebi."

Student, it's because the Safari Zone for D/P/Pt was sort of lacking; it contained Pokemon that were from a mountainous and marshy region like Sinnoh was. Plus we can get multiple Lucario now instead of just breeding Riolu

HG/SS are shaping upto be great games indeed.

Nintendo just wants my money!

And there gonna get it!