I liked SKII because, like the James Bond movies, it had a pre-credits sequence involving Juni saving the President's daughter from the top of a fairground ride.
I thought Steve Buscemi was funny as Romero and it was interesting to see him play a good guy as he normally plays baddies, (Randall in Monsters Inc.)
Daryl Sabara was, as with SK1, hillarious. The gadget that picked his nose was funny.
I would reccomend this to all who have seen Spy Kids. The gadgets and animals are the funniest!
I give this movie 5 out of 5! It's better than the first!