But the second one was forgettable, too. The only great thing about it was Cain's robotic design.
Even the first one isn't as good as I used to remember it being when little. It's a fascinating concept, but I don't think any of the films have really done justice to the premise. Aside from ED-209's design, much of the decent stuff was essentially ripped from 'Judge Dredd' (quite literally in the case of the 'crotch shot' scene).