This level is the first level to feature Newspaper Zombies. They move faster once their newspapers are destroyed.
The unlocked Puff-shroom costs only 0 sun, so it provides free defense. Take advantage of using it, as the player will be unable to use Sun-shroom when playing this level for the first time.
Zombies emerge from the graves on the final wave. A good defense should be built beforehand, as the player has no way of countering this ambush when this level is played for the first time.