By Bad Seed
I was stuck a lvl 70 of this survival mode for quite a while, but i made it to flag 100 which was my goal.
All i can say is that the plant setup is only a part of success here, you have to be a clicking nazi for it to work, it's not even funny... my finger hurt so bad after it; click on cob cannons, suns, coins, place cherry bombs, jalapeños, doom shrooms, replace pumpkins, replace any destroyed plant, replace spikes, place blovers, repeat, repeat and repeat...
I recorded the moment, and then got my brains eaten in a gruesome zombie death at flag 102, i don't think i'll ever try to get that far again, fast clicking was insane and definitely not healthy lol.
DO NOT TRY THIS AT HOME