Reboot the ultimate mechanical menace with our "marvel villainous: ultron" puzzle! Created too smart for the world's own good, ultron decides to annihilate fallible humans and replace them with highly intelligent robots. When avenger adversaries (including iron man, scarlet witch and wonder man) get in his way, ultron creates his own army of robotic sentries to wreak havoc. On top of superhuman strength and genius-level intellect, ultron is practically indestructible. With an enormous ego and an unwavering mission to destroy mankind, will his sinister plans succeed?