Is it just me or is level 8 ridiculous? Even if it is possible to succeed on a regular basis with a specific strategy, it is such a jump in difficulty, that it kills any sort of enjoyable learning curve.
Ok the challenges are retarded though. I understand the point of them, and yes, the strategies you want to teach are valuable, but your success is way too dependent on the AI, both the enemy and your own.
 "colorfill"){kind=icon}
 "Castle Crashing \"The Beard\""){kind=icon}
 "Areas"){kind=icon}
 "Super Energy Apocalypse"){kind=icon}
 "Indestruct2Tank"){kind=icon}
 "Talesworth Arena"){kind=icon}
 "Bot Arena 3"){kind=icon}
 "Warlords: Call to Arms"){kind=icon}
 "Portal: The Flash Version"){kind=icon}