Waaaay to easy in my opinion. Cleared out everything but survival in very short order, only failed once, and that on the last level. Addictive though, and tremendous fun so 4/5 (only downer was the difficulty!)
Nukes + missile generator does sort of make the subsequent few levels a bit easy. With nukes costing >1mil a pack, was it intended that I should be able to generate more of them than I could ever fire?
 "Mushroom Madness 2"){kind=icon}
 "Enigmata 2: Genu's Revenge"){kind=icon}