Oh, yeah, Rescuers Down Under was good. Probably the only Disney sequel that was arguably better than the original.
It's not animated, but if you want to talk about unnecessary Disney sequels, how about
this? Although they at least based it on the actual books that would have gone there.
Remember Tarzan 2? That title would have been okay if there wasn't ALREADY a Tarzan 2... all Disney sees is green.
What always gets me is how they had the animated 101 Dalmatians (underrated, btw;
listen to Ken Jennings), then the live-action 101 Dalmatians, then the live-action 102 Dalmatians, and then the animated 101 Dalmatians 2. And a TV show.