I love Operation Genesis for the PC!
I play it now and again, but I do admit that it does get a bit repetitive, but I love the missions, minus the sonar ones where you have to heard the dinosaurs into the safe spot, Hate those! lol
I wish they would let you get all of the dinosaurs though in one game or in one site B.
I love Site B, it was so much fun, sometimes I would spawn a tornado to see what would happen and yes it always heads for your dinosaurs. It even goes as far as to go around in circles to make sure one of them dies, but here's something you probably didn't know.
If you have Acrocanthosaurs, brachi's, T-rexs, or spinos, beware of tornadoes, although they don't fly away, if they get hit directly, well, they, ugh, its yucky to say the least.
They just turn to pixilated blood and fall to the ground, no body, *shudders*