Garrr!!... I tried playing again and was enjoying myself but the game keeps losing my city!... I bribed a hoard of barbarians, saved and when I went back to the game I was in my first city and my second city had disappeared off of the map... I give up with this game...
I was having fun but now the game claims that my second city is gone even though I defended it easy-as-pie... It was my super soldier producing city!...
First things, first, this is a game... Just a game that interacts with itself... Also, I think you may need to speed the wall up a tiny bit... I reset 10 times and every time the slug won...
I actually found this game while searching for a book by the some title... I wouldn't have noticed it if I wasn't already a Kongregate regular... Anyways, I was impressed by the game if not disappointed with it's shortness... I'm putting it on my very selective favorites list anyways...
I thought it was fun even if it was a bit jumpy with respawns and such... if you think a level is impossible just try experimenting with what will kill you...
 "Boss Battle"){kind=icon}
 "Snail Bob"){kind=icon}
 "The Imperium"){kind=icon}
 "SHIFT 3"){kind=icon}
 "Go Slug!"){kind=icon}
 "Understanding Games: Episode 1"){kind=tracking}
 "You Have To Burn The Rope"){kind=icon}
 "Simple Picross"){kind=icon}
 "Engines Of Creation"){kind=icon}
 "Campaign Game: General Election"){kind=icon}
 "The Gem Digger"){kind=icon}
 "Excit"){kind=icon}
 "Draw-Play 2"){kind=icon}
 "Dark Cut"){kind=icon}
 "- Spin Climb - {Green}"){kind=icon}
 "Crazy Mammoths"){kind=icon}
 "Bot Arena 3"){kind=icon}