Rally Zombie

Rally Zombie and his world-themed variants in Plants vs. Zombies 2 are upgrades of Flag Zombie and his world-themed variants. Much like Flag Zombie, he marks the arrival of a huge wave of zombies; however, he moves faster, eats faster, and takes more damage before dying than his normal counterpart.

Almanac entry
Modern =

Egypt =

Pirate =

Future =

Rally Zombie
Modern Day: Days 35 to 38 and 40 to 43

Egypt Rally Zombie
Ancient Egypt: Days 26 to 32

Jolly Roger Zombie
Pirate Seas: Days 26, 28, and 33

Robo-Rally Zombie
Far Future: Days 26 to 32 and 34

Overview
Rally Zombie and his variants absorb 12 normal damage shots and changes their appearance upon absorption of 7 normal damage shots, when their arm falls off before dying at 12 normal damage shots.

Strategies
You can handle this zombie the same way as you would with Flag Zombies, but they move faster, eat faster, and have more health. Save for the potential allies they may have, you shouldn't have much trouble with these zombies.

General

 * The increased speed he has is maybe a reference to the speed the Flag Zombie had in Plants vs. Zombies.
 * Before the 5.9.1 update, Rally Zombie and his variants appeared on the seed selection screen, unlike Flag Zombie.

Specific to Jolly Roger Zombie

 * He is the only Rally Zombie variant that doesn't have the word "rally" in his name. It was replaced by the term "Jolly Roger", which is a name for pirate flags.

Specific to Robo-Rally Zombie

 * The flag is the "hovertech" mentioned in the Almanac entry. This may allude to it being similar to a magic carpet.