As I said a while back (and it works).
For the hard badge, do track three, start with a couple of monkeys. Then fill the place with blade shooters!! seriously, its wicked! And a cannon before level 20 too!
Copy and past if this works for you too!
PJosh
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 "Tangerine Panic!"){kind=icon}
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 "Duck, think outside the flock"){kind=icon}
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