Originally posted by SoulDevourerwell, ultron does have an internal molecular re-arranger in his head (or torso) that allows his body to move when it's almost solid adamantium (his joints are some sort of treated titanium blend shit that's less durable).
did Ultrons insides ever broke before because of *impacts*?
so far only energy attack have melt themso his circuits prolly sensitive to heat based attacks only, not impacts
any molecular re-arranger worth their salt (pun intended) may be able to mess him up if they just take a moment and think. a blast from thanos might melt his joints though, or at least repeated blasts.