I've seen ragdoll done in Flash. Granted, 2D ragdoll, but it didn't slow down my entry-level PC in the slightest. As for AI, I've *never* seen slowdown on any system, in any game, because of AI (except Outpost, when I couldn't get the damn AI to shut up). It's really complicated to program, not as hard to execute. And I never once mentioned Wii. Someone's jumping the gun, eh? As the old Indian saying goes "Man who jump gun, soon get bullet in rear." So, um, let me meet you some place so I can pop a cap in your ass.