I loved the first and this has the potential to be 'epic'. The game could use autofire (my left pinky is cramping from holding down 'a' for so long), and there is no window telling you how much it costs to upgrade buildings (so you are left to guessing when the icon will light up. If you add autofire, you could then make user spells (I am thinking fireballs and vortexes, etc)that could occupy the gamer and cause more havok. In game medals would be nice (for stuff like time-trials or accuracy or any number of things) and they could unlock special units/spells. As it is, the only major improvement is no friendly fire, but it certainly has the potential to be so much more...