Let's get together what we actually know about Lori...
She's Jazz' and Spaz' sister, even though she was originally meant to be Spaz' girlfriend, but that was changed in the last minute. She has superathletically abilitys (but she can't jump high?) and... she's yellow. What else do we know. I looked in the unfinished noogy cartoon which was meant to be the intro, she doesn't appear there. Some of her frames are unfinished, and she uses the same fastfire gun as Jazz does, even though the weapon she carries looks different. She's a bit bigger then Jazz and Spaz (I think, correct me if I'm wrong). Anything else? Oh, and she's the only playable character which actually wears clothes. Her clothes were meant to be yellow earlier, but they decided to make them violet so there's a contrast with her yellow skin (and probably for some other reasons
)
That's all I know, feel free to add something.
EDIT: She can't grab copters, WHAT A SHAME!