strategy to beat them is counter-intuitive towards the rest of the game- that is: focusing firepower, rather than trying to create the most damage. It ends up being a little excessively difficult because all your abilities are geared towards causing the most widespread destruction, not focused destruction.
 "Idle Mine"){kind=icon}
 "Epic Battle Fantasy 4"){kind=icon}
 "Infectonator 2"){kind=icon}
 "Kamikaze Pigs"){kind=icon}