Every console released since the dawn of video games have had exclusives. Some games could dominate the market to the point where they have the power to be able to sell a system just for that one game like Super Mario Bros for the Nintendo Entertainment System. And then you have the other end of the scale, exclusives that make you wonder "What the hell were the programmers thinking and why on earth would I want to go out an buy a Atari Jaguar to play Cybermorph"... My apologise to all you Jaguar fans.
Each level has its own unique style and gives you a variety of indoor, outdoor land and outdoor space environments. Take note that each level you progress through is actually going further back in time. Until the last level that is, when you fight the final boss in the current era of the future.... Make sense :P