Movies and shows to watch for character research

Long story short I write fanfiction and after finding the movies a few weeks ago and binge watching those I wrote a fic and posted it. Still I’m eager for more so I got a basic idea but the issue is that it takes place after Sonic 3 and while I have played the games in my past, I know basically nothing about the pink chick who showed up at the end of the 3d movie.

I just need to know some sort of movie, show, or something similar that I can watch to research how the character acts before I continue.

Any help is appreciated and please mention where I might be able to watch the stuff if known.