Made it through all the episode 1 levels, no problem. Also made it through 2.1 with ease. Less than a minute into 2.2 and I get destroyed every time. I've tried it probably 10 different times with differing strategies. Seems extremely unbalanced which is a shame because I was really enjoying the game. :\ This is the first time I've ever felt disappointed enough to leave an unhappy comment on a game.
 "Obliterate Everything"){kind=icon}
 "Elephant Quest"){kind=icon}