The graphics, I must to say, are almost superfluous. The music is a good choice, kind of reminds me of older video games. The upgrade system is unique and adds an intresting twist to the whole thing. Overall a very good game, far surpassing the norm. The only things I would like to see might be; auto-turrets (perhaps upgradable but definately destroyable), some sort of entrenchment, and maybe some bombardment type weapon that where individual shots would be purchased. But then again, adding those might throw off the balance of the game. Well the Imminent series is of an exceptional caliber, so keep up the good work.