The series were trademarked by Acclaim and that company held true to the basics of that game:
Various weapons of unique design and function, most of which hold secondary (or even tertiary ) functions,
Involving storylines within the set-up and highly 'animalistic' AI's for the 'saurian creatures, making for interesting single-player action.
I'm just not partial to the fact that Micorsoft decided to completely take-over that series. I played all of them from the get-go 'till before the last one, and I own the GameCube version of Evolution myself.