I would like to address the "How Sakura sees Ridley" thingy:
Since the first game(SSB64), Sakurai has proved he sees Ridley as an important character as he was important enough to have a background appearence, something that was DDD representation on it, I repeat, Ridley gets the same representation as Sakurai's game main villain, what we get next? Him appearing in the Melee opening and getting a trophy(DDD got one too), he could have made a trophy of the presumably 'main villain' Mother Brain and putting her simple animation and model in the opening(Sakurai had to cut Ridley's tail, he prefered to cut his tail instead of making a brain in a jar[which, is less work than Ridley]), then in Brawl, he was chosen to be the Metroid boss, twice, unlike Mother's main villain(which Sakurai is a fan of) that didn't even get to appear in a cutscene, at this time, Dark Samus got a trophy and no sight of MB, now, we have three ATs: MB, Dark Samus and THE BABY and you're telling me Ridley, who Sakurai has presented more than any of them, is going to be drunk boss(glorified hazard), he sees Ridley as an intelligent being since Melee and only acknowledged MB now(Brawl's DS trophy also says she is like Samus in every aspect), that would be backward development, it's like if we only got Meta Knight and no DDD.
Sakurai knows how important Ridley is and even has an idea of how hewould work, being slow, and as himself said, if we don't see playable Ridley, Sakurai isn't trying hard enough
And that's of course not counting for the official art variations of Super Metroid Ridley, Metroid 1 Ridley, and Other M Ridley.
Which is fine, since that's a pretty small easter egg. Though it's not as rare as Moltres or anything.
