Fun game but the prestige mechanic is a bit flawed in that it doesn't really allow you to advance much further every time you do so. Someone who has prestiged 10 times will likely get little further than someone who has only done so once.
Managed to get to wave 23 with a laser gun level of 2302. But i'm not even close to beating it. I'll probobly need to get around 2350-2360 to do so. Great game. But could of done with a secondary prestige. Perhaps reducing skill exp needed from level*2^(level/100) to say level*2^(level/(100+x)) just so there is actually a way to fight off the diminishing returns.
could do with other game options like multiplayer, missions that require you to complete a map with only certain towers etc. Maybe throw in a new unit or two.
not too hard if you know what your doing. I also find it annoying but good that its extremely difficult to farm the spawner as it spawns faster than a 8 man gun squad can take down, forcing you to kill the spawner
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