For those of you freaking out that its "impossible" at later levels and its all luck, thats a lie. Certainly there is a bit of luck sometimes, and it might take a few tries, but its not all luck or impossible. You just probably are going to have to rethink your strategy. No one strategy works all the way through this game, which actually makes it so awesome. Good work!
Note the last level is pretty damn difficult, I understand if you find it impossible there, but I assure you it can be done. Remember, those labs are super fast... if you can use their speed when attacking, do it.
By the way, the way to win here is not just focusing on sheer numbers, thats not a strategy at all in the later levels since you clearly start with less. The strategy is to use you numbers wisely, attack after they weaken forts, attack them right after they shoot of goos to cripple them, when fighting reds who love science cripple their labs if you can with your own, or take out their producers so they can't do anything... etc. you end up figuring it out after a few rounds of frustration.
glitch found: after training all monsters then quitting, then starting a battle before training was done, I got a copy of my nanabanana that gets the same stats and levels up in unison with the original.
Glitch that my fireball made enemy go neg health, had to wait a bit for regen to make it back up to 1 so I could kill. Not a huge issue this time because it was only -47 health, but if I get strong enough that it becomes -200 or something it could be really annoying
sun+ human= George Harrison (here comes the sun), quicksilver+ tools= silver hammer. silver hammer+human= paul mccartney (maxwell's silver hammer), Octopus+human= Ringo Starr (octopus' garden), Field+human= John Lennon (Strawberry fields) Ringo Starr+John Lennon= Ringo Lennon? Paul McCartney+ George Harrison= Paul Harrison, Ringo Lennon+ Paul Harrison= a grand total of a beetle.
 "The Peacekeeper"){kind=icon}
 "JellyGo!"){kind=icon}
 "Alien Anarchy"){kind=icon}
 "Beloved"){kind=tracking}
 "Monster Saga"){kind=icon}
 "JumpingLine"){kind=icon}
 "Stealth Hunter 2"){kind=icon}
 "Monster Arena"){kind=icon}
 "Feudalism"){kind=icon}
 "Doodle God 2"){kind=icon}
 "Hands of War 2"){kind=icon}
 "You Find Yourself In A Room"){kind=icon}
 "Bunny Flags"){kind=icon}
 "Can Your Pet?"){kind=icon}