- The Slingshot Zombie has low health, but it is a far-ranged attacker, so be careful or the player may lose their health. They should use defensive plants such as Wall-nut to protect other plants.
- Sometimes, the game will spawn a Primitive Buckethead Zombie to replace one of the Slingshot Zombies. It has higher health, but it's not a problem if the player has upgraded their plants.
- The two small numbers next to the zombie icon means that zombie will appear there, with the small number on the left displays the lane that the zombie will appear, and the one on the right displays the column that the zombie will appear. If there's only one small number next to the zombie icon, then it means that that zombie appears at the beginning of the lawn, and at the lane that the number displays. Example: 3-5 means that a Basic Zombie will appear in the third lane, at the fifth column. Note that this only displays the position of the zombies that have the most chance to happen.
|1||2-5 2-7 1-7 3-7||None|
|2||1-6 2-6 2-8 3-6 2||Final wave|