wave 2125 and still running...
great game - love the combo system. BUT the only problem is: with your normal turret combos you can reach 137or something. then you haven't got the slightest chance. so the only way to "win" is to use the black holes and equip them in the middle of the game. so that leads to only one superior tactic...as I said -> wave 2125 and still running. I guess it will run forever that way. if anyone doubts my word -> i can email you a screenshot :P