Sluggish...
My first reaction was the voice acting. A little lame. Wonder who forgot their lines, lol. Then came the controls which is where I really have the issue. The control set up itself was fine, but the handling seemed so slow and sluggish. Pretty much liked it belonged to a stealth shooter. Turning around took forever! I mean it wasn't like the little orange heated aliens were gonna come rushing at me at full speed themselves but I still expected to be able to turn and aim quicker then a 70 year old man.
But once you get over the fact this kid seems to suffer from major arthritis, the game itself was also way to easy, even on the difficult challenge.