This level introduces the Pea-nut to the player, and lets them use it for free. However, this plant will aid the player, but will also make this level very difficult. The main reasoning is due to the presence of the Jester Zombie. The Jester will counter 2 of the plants given, Puff-shroom and Pea-nut. This is likely added to apply ammunition to the Jester Zombie so it does not remain useless. However, Pea-nut is needed to guard against the Knight Zombie, as well as the Buckethead Peasant. The biggest threat is the Wizard Zombie, which appears frequently near the end, and is usually grouped behind Knight Zombies. Fume-shroom is the player's main attacking plant in this level, which does not appear as frequently as needed, making this harder. Grave Buster should be used immediately, as there are tombstones extremely close to the lawnmowers, and take up space to plant.
The small number next to the zombie icon means that zombie will always appear in that lane, with 1 being the topmost lane and 5 being the bottommost one.