Fried1409....
For level 11 start out in the first bend closest to the monster pit with a Kraken level 9(3 mini guns mixed) and right below that start on another Kraken until it is fully upgraded. In the next bend where it covers the most put a ice cannon upgrade to level 3. Right above the ice tower in the same bend start another Kraken. You won't be able to get it fully upgraded. I never lost a life using this setup.
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