He said he''d be back and he is, programmed to protect the boy who will be mankind''s post-nuke resistance leader. But the T-1000, a shape-changing, ultimate killing machine, is also on the boy''s trail. Twice the mayhem, five times the special effects, ten times the budget of the first, but without Arnold it''d be half the movie. The word hasn''t been invented to describe the special effects, particularly THE scariest nuclear holocaust scene yet. Worldwide megahit, but the $100 million budget nearly ruined the studio; Arnold accepted his $12 million in the form of a jet.