This game seems very solid, but there's one area where I expected a major improvement over flash tower defense games, and that is post-battle analysis. I want to see a variety of useful stats for the towers I placed. IE, for every tower I placed, I want to know how many waves it was up for, how much total damage it did, how much damage it did per dollar spent, how many kills it got, how much damage it did on the last wave, the last 5 waves, how much damage it did per second it was up at each upgrade level, what percent of my total damage, what percentage of the time it spent shooting, etc etc. I should be able to tell exactly how effective every one of my towers was, both on an absolute scale and compared to the price I paid for it. At least total damage dealt per tower would be nice, as this would combine nicely with the 20k challenges to calculate tower efficiency.
It would also be nice to have more hard numbers available. How much damage per second per dollar is a level 3 gun? I'd like to be able to compare tower efficiencies, and this would be much easier to implement than detailed battle statistics.
How exactly does burn damage work? Does a higher level tower do more burn damage, or burn for longer? Does the duration of the attack affect the duration or damage of the burn?
Great game, I care about knowing the details because I can't stop playing!