Diana Martines is a part-time fashion model whose feral appearance gives her access to a number of clawing and agility-based techniques. She is also skilled with a whip, and is accompanied by her pet fox "Fin". Her battle download allows her to hasten the entire party, drastically improving the attack speed of all party members for a limited time.
Yellow Iris can dazzle opponents with her Crystal Rose move, perform cartwheel kicks, claw swipe enemies in the face with her Feline Barrage attack, or charge up her pet fox Fin and use him like a torpedo. He charges out and briefly attacks all enemies on the screen.
- Felicia from Darkstalkers, Capcom's more famous catgirl, has a Yellow Iris skin available as DLC in Ultimate Marvel vs. Capcom 3.
- Yellow Iris also appeared in Felicia's ending in Capcom Fighting Evolution.
- Iris was one of the available characters in the canceled RPG mobile Capcom Super League Online.
- Considering the release date of Battle Circuit and her being shown with Felicia, or a skin for Felicia. She likely is at least a little inspired by Felicia from the Darkstalkers series, which came out a few years before.