Yeah, I was sorry that it wasn't a crossover, either, since Dyno-Mutt was originally a Scooby spin-off; the gang appeared in the first episode. It is a fun movie, just the same, though, with extremely familiar characters if you watched both shows and is another love-letter to vintage HB.
I would have said that was more like the 70s, but it was just different drugs. In the 70s it was fueled by weed and acid, and in the 80s (and late 70s), weed and cocaine.
But yes, Cudley does hail from the 1980s Archie TMNT comics (Archie also did the short-lived Moo Mesa comics, so there was always crossover potential).
I don't know, the comments on a post of Lost Horizon's song "Highlander (The One)" might have won that award if they hadn't pulled it.