For a group of cartoon bullies, Hyp and his friends got better characterization than a lot of other examples I can think of. Most bullies in kids' stories tend to have this unbelievable 180-degree turnaround as soon as they learn their lesson, an annoyingly unrealistic trope that I always had a hard time swallowing. One moment, they're the main characters' worst enemy, but the next thing you know, they're all best friends forever! (Insert gagging here.) However, Hyp and his friends were spared this complete transformation, thank goodness--even after learning their lesson, they're still loud, they're still mischievous, they still call each other names. They're still very much recognizable, albeit with a bit of development. I have to give LBT a lot of credit for that.
That being said, I still have a complaint. Hyp and Mutt have their own defining characteristics, with Hyp being the bossy but insecure leader and Mutt being dimwitted but probably the most innocent of the group. But then there's Nod, who basically has no real personality whatsoever. I mean, it would've been nice if he occasionally got to do something besides saying "Yeah!" every time Hyp spoke.
I always enjoyed "Eggs" and "Very Important Creature" too much for "When You're Big" to be my favorite LBT villain song. That doesn't mean it wasn't catchy as heck, though.
It's the kind of LBT song that sticks in my head for quite a while after I watch it. I gotta say, though, the most memorable part of it for me was always that weird little dance the bullies did towards the end of the song. Even as a kid, I always thought it was awfully silly looking for a group who was trying to be intimidating!