How would I go about ripping from a 360 game?

[downymax]

Specifically, Ultimate Marvel vs. Capcom 3. I've heard Capcom games are harder to work with -- is this true?

For months, I've been in want of the square character icons from UMvC3 for a personal project of mine, but having no luck grabbing anyone's attention, I figure it's time I try and tackle this by myself. These are what I'm referring to, for reference:



I have the game ripped to my computer, but where would I go from there? It shouldn't be too hard for me to access those icons, right?