Alright so I managed to plow through the fps lag and found myself enjoying the game overall.
Was confused as hell in the beginning about saving/leveling, but I managed to figure it out and found it rather charming. Instead of money/coins though, might I suggest scrap as the means to upgrade? Kill other robots and take their parts to upgrade yourself (or was that what your currency was?).
Not sure if it was due to lag, but the collision for re-entering the garage to save/upgrade was fickle at times and I would have to constantly go back and forth to get it to work.
Aside from those minor criticisms (fps may have been due to my end, so beyond your control) a solid game with a bit of humor to round off the edges and provide a good time.
9/10 IGN