Here's a useful strategy for those who are having trouble with this game: 1) Eat all the protein you can eat 2) Let all the other microbes eat until they have reached their maximum size 3) Wait for them to split in two 4) Eat their babies! And that is pretty much all you will need to do to get all the Badges XD
Please make a "Restart Operation" button. Also, this game does not seem too realistic (or graphic, however you want to call it) - the warning on the starting screen sounds scarier than the game actually is. 3/5 :P
When you fill all the pieces in perfectly and you think you built a solid tower, it starts falling apart for no apparent reason. I find this extremely frustrating, 3/5. x[