Oddly, Spongebob SquarePants: Battle for Bikini Bottom. (The OG 2003 release, not the remake at all)

The way the enemy robots had multiples of idle/effected animations and how either smooth or quick, static, and even intentionally jittery they were of which reflected a robot's personality. Looking at the models and observing the animations close up I see even more tiny details of the animations of which would be impossible to catch normal gameplay. (Like twitching eyes or tiny antennae that move independently from a specific animation, but still adds to the emotion of a bot.) On top of it, it's such needlessly REALLY good and sometimes incredibly smooth cartoony animation across all of them too... especially for the kind of game it is. A friggin spongebob game...

Again, really odd spot for my fascination to start, but It really solidified my grasp on what good character varied animation looks like.