I hope there is other way of restarting the level because this will help me to estimate only the power and not both power and direction.+ if u agree,so if there is more bloons 2,the game would be easier.But interesting concept of the game and love the game.
Ahem ahem,for chp4 just survive.For me i got all mana/2star mana and i summon only one unit to held the zombie,when the one unit dies,then summon other until time is up,this way u don't need to atk the boxing dude..
 "Scribble!"){kind=icon}
 "Balance Balls 2"){kind=icon}
 "More Bloons"){kind=icon}
 "Ultimate Santa Battle"){kind=icon}
 "My Little Army"){kind=icon}
 "Cardian"){kind=icon}
 "Reactance"){kind=icon}
 "Sushi Cat 2"){kind=icon}
 "Refraction"){kind=icon}
 "Papa's Burgeria"){kind=icon}
 "Doodle Devil"){kind=icon}
 "Pixel Purge"){kind=icon}
 "Me And The Key 2"){kind=icon}
 "Gravitee Wars"){kind=icon}
 "Epic War 4"){kind=icon}
 "Easy Joe"){kind=icon}
 "Robot Wants Puppy"){kind=icon}
 "Electric Box 2"){kind=icon}