This reminds me a little (if digging would work in all directions) of dungeon keeper. One of my all time favorites. This is a cool game to build on, but from the get go I had the feeling it's missing something.
Looking forward to the badges. The game already has a high rating over on not Kong. Really nice game. However, the suggestion from the top comment (close ranks) ... it would be cool if this got implemented in an update.
Even though it's frustrating at times, I kept coming back and finally got all "perfect times". 5/5 really cool, and this deserves a few nice badges as well as a sequel.
Uh. I thought i couldn't beat wave 30, when i actually started using the "Gun Cannon" ability. Hold for a sec, release, hold ... etc. When i did that -> beat wave 30 first try.