So obviously the US retail "version" you bought did not come with the manual which explains all the controls did it or how the gamepad easily controls everything as that's the original design.
Worst port ever you must be joking its nowhere near perhaps your version was incomplete or something as an incomplete leaked version does contain a lot of bugs..................
Compared to dire ports like Saints Row2, Mercenaries2, or R6V2 this is technically a long way ahead & only lacks graphical options but that does not mean much anyway. The 1.1 patch gives you a high/low option but I doubt any new PC built in the past 3 years will have much trouble with it on max graphics with a reasonable graphics card anyway as long as you do not use AA it will be a breeze for most systems.
The opening level is just a tutorial to see the physics in action play some other levels where you have upgraded your force powers then see how they react when you blow a starship window out and watch everything get sucked out the room or how you use force powers to bend objects & or launch enemies into them. Yes I agree totally they are not what the hype said but equally I have to disagree that they are appalling as there not at all and are defiantely more advanced than other PC physics engines.