Monkey vs Balloon would be nice as in if a bloon gets past your monkey has a life bar and all your towers have a chance to take 1 damage for each ballon that gets past if a tower lost all its life bars you would have to repair it or aid him/her for half of the price it cost
if u have around 1000 cash at round 40 then buy monkey aces they help with pinapples instead of u buying them then placing them pinapples from monkey aces r free
For the last boss stop him by using hobbits and elfs if u are really desperate to win while doing this summon dragons and angels. Make sure your manner is 9999 while battling the end or you are going to die for sure
black goblin is killable without destroying the base also gold angel tip have timer at level 5 and fire titan at level 5 and use your units to distract the angel while fire titan is destroying base eventually the angel will attack the fire titan so dont move the hero who controls the fire titan