this works build some toweres like a maze use all money on toweres around exit send all waves (or a large ammount) then you will get some kill then upgrade area toweres to full and you should start geting loads of money.
to kill the barron start with boost move like boost attack and deffence then he will run out of focus and restory it with a lot of his life going once hes done this attack him and you can win easy
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