(Staff: If this isn't appropriate, you can slap this down)

Of the many video games that I've personally played, I'd have to say that the biggest derriere that a screen has displayed...after long thought, April May from Phoenix Wright: Ace Attorney.

I know that isn't very sizable, but I haven't played Tomb Raider, so buttcentric games aren't really on my table.

What about you?

rufus from street fighter 4

what ? he has a huge ass

I think I'd have to give that to Bayonetta.

I'm a boob man myself, so can't help you, sorry.

As for the butts, what's important, muscular butts or fat butts or a mixture?

I like big butts, and I cannot lie.

Fat butts. There's a picture on dA that explains precisely why, but I think that'd be pushing it to link it here. That's larger than the majority of the art and video I've seen implied. Hmm.

the only butt that comes to mind is John Shepard, but I think that's b/c I watched that bounce in front of me for many, many hours. bouncy, bouncy, bouncy. that butt isn't even big for a white girl.

What about <span class="bold">Harley Quinn</span> from Batman Arkham series?

Oh man, a little of both is the best. Yeah, I've noticed Asians don't seem to be able to design glorious badonka donks. :(

Eh, that's an Average on the arse scale.

You prefer <span class="bold">this version</span>? :-p

Gammie Boysulay from Leisure Suit Larry 6

http://youtu.be/B5QzzitswNg

I'm just going to leave this link here.

No, I was trying to avoid invoking deviantArt. :P
Is there some joke I'm missing? They're all just from Smash.

Mass Effect's Miranda Lawson (I think that was her name. Can't be bothered to google) had a fairly prominent butt.