There is a glitch on the first level, if you pause the game to look at the addition objectives the game gets stuck in a loop and the next wave never spawns.
I would really like to give this a full review because it seems like a good one but I'm having the same issue as others where enemies cease beyond the first four people. I tried playing in different browsers but it doesn't seem to be an issue with the difference in functioning on certain browsers. I hope that helps a little.
From what I can see of this game, the graphics are appealing, the gameplay is simple but may become more fun as levels increase, and the idea is nice. Based on that, I'll give you 3 and 1/2 stars.
I give an apologize to the Newgrounds community. I upload a bad file moment ago. If you refresh your explorer Im sure the spawn will work.
Fun, but very repetitive
Love the idea and art, seems a bit on the slow side, lots of random bugs: when upgradign somtimes units clone them selves, also somtimes when messing with a unit it will jam and if you press evolve it will change into a psychotilcly powerfull seed seeduis, also i cant get past lvl 17 i destroy all the buildings and nothing happens.
i was going to write a review... but my feeling on this game are perfectly portrayed on redwolf7x's review... so... there it goes... X)