The special effects were no better or worse from the original. The only thing I maybe loved about this sequel is everyone revised their roles. The worse thing about the movie is a man going to mars in 1998??? Sorry guys, maybe 2098! They could have made it on the moon, why not!?! The other thing that got on my nerves was the extreme sex and nudity. I mean, its okay to a certain extent but don't turn it into a sci-fi porno. Maybe a third one will do to make a trilogy, but quit after that. Who knows, you may see "Species : Resurrection" some day. I give it 2 stars out of 4.