Just as a suggestion, what if there was a button to hit to make it go two or three times as fast. That way we can still follow what the monsters are doing, but we don't have to wait for it in realtime.
Way too easy. I actively played until about level 150, then I switched to another tab, and stopped paying attention. Right now I'm level 450, and the bugs still aren't reaching the bottom row. A set number of waves would be better. that or make it more difficult more quickly. It's decent, but could have been implemented better.
 "Ultimate Tactics"){kind=icon}
 "Kayadans: Bugs Tower Defense"){kind=icon}