Pianist Zombie and Hair Metal Gargantuar are dangerous zombies. Pianist Zombies can crush plants with their piano when plants are in the way, while Hair Metal Gargantuars can also crush plants, constantly send sonic waves to kill any frontmost non-defensive plant, and can throw their Impunks into the defenses.
The combo of Super-Fan Imp and All-Star Zombie can be devastating. Super-Fan Imps can incinerate plants in the first three columns when kicked by an All-Star Zombie, while All-Star Zombies can tackle a plant similar to a Gargantuar smash.
The raptors in the level can kick dangerous zombies such as a Newspaper Zombie, a Hair Metal Gargantuar, an All-Star Zombie, and a Super-Fan Imp into the defenses. However, they can also kick Disco Jetpack Zombies, which are of little threat if the player has brought Blover.
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.