I caught a lot of that on TV once. I remember being all like "why is Bison just some boring dude in a business suit now?"
Also it led to another disappointment. That movie had a point that explained that Bison became fully evil by putting all his goodness literally into another person, which became Rose. I was like "that's the dumbest crap I've ever heard."
Then I found out that the filmmakers weren't the ones who made that up...
Sad thing is that cartoon series is kind of like the movie done "right." I probably need to go through it again but I remember buying the DVDs and expecting a complete disaster, but instead it was actually kinda good.
I haven't had the courage to watch the US Darkstalkers cartoon yet tho... that's one I'm dreading.