Survival: Roof (Endless)/Strategies

Strategy 1
This strategy is both suitable for Survival: Roof (Endless) and Survival: Night Roof (Endless).

You should launch a pair of cobs every 7 seconds, in other words, when the zombies appear, you should launch a pair of cobs in 1 second.

There isn't any Digger Zombies and Dancing Zombies on the roof. Jack-in-the-Box Zombies and Catapult Zombies can be killed when they appear.

In the even flag, you need Ice-shroom to kill ambush zombies. When on the roof stage, you should wake up the Ice-shroom in 5 seconds after "A HUGE WAVE OF ZOMBIES IS APPROACHING!". When on the night roof stage, you should plant the Ice-shroom when the "A HUGE WAVE OF ZOMBIES IS APPROACHING!" disappears.