The Amalgamate

THIS ZOMBIE IS A BOSS. Prepare for a boss that will shake the ground. This abomination of a zombie has been created for the sole reason of absorbing your brains!

Basic Info
Health: Infinite (Not an impossible fight)

Common
Slay: Summons 3 Knight Zombies and 1 MC Zom-B

Slay 2: Summons 2 All-Stars and 5 Buckethead Cowboys

Defense: Summons 2 Mummy Bucketheads, 2 Carthead Zombies, and 1 Fossilhead Zombie

Rare
Slay 3: Summons 5 Jester Zombies, 8 Cowboy Zombies, 1 Mecha-Football Zombie, and a Flag Zombie in front of all zombies mentioned

Exterminate: Summons 5 MC Zom-Bs, 5 Breakdancers, and 2 Peasant Coneheads

Defense 2: Summons 8 Buckethead Cowboys, 5 Conehead Cowboys, 3 Cowboy Zombies, and 1 Robo-Cone Zombie

Goop Troop: Summons 3 Poisoned Basic Zombies that, if killed by the poison, destroys a random plant

Very Rare
Exterminate 2: Summons 5 Peasant Bucketheads, 3 Newspaper Zombies, and 2 Shield Zombies

Extraterrestrial: Summons 2 50 Health, unmoving Peasant Zombies on every lane

Limited Use Attacks
(3 Times) Pushing Forward: Summons every Gargantuar on a single tile, along with one Breakdancer Zombie. There will be 3 Blovers in the conveyor belt already to defend against this attack by blowing the Gargantuars away.

(5 times) Merge: Will summon 2 zombies and will merge their powers together to make a smaller amalgamate. Destroy the mini amalgamates to destroy a part of The Amalgamate (boss).

(1 Time) Offensive Plan: Summons 8 MC Zom-Bs, 5 Surfers, 5 Pyramid-Head Zombies, 3 Rally Zombies, and 1 Sloth Gargantuar

(1 Time) Defensive Plan: Summons 8 Robo-Cone Zombies, 5 Carthead Zombies, 3 Peasant Coneheads, 10 Flag Zombies, 8 Dragon Imps, and 1 Disco-Mech 3000.

How to Defeat
The Amalgamate will slowly use all of his attacks, bit by bit. This is a conveyor belt level, and one of the plants is 5 Melon-Pults. You will also get other heavy hitters, such as Citron. Use these to kill summoned zombies, it won't be much of a problem. Only zombies are summoned quickly, so be careful. Use Plant Food on mini amalgamates, preferrably Citron's, because after killing the mini amalgamate, you will have to destroy the part left over: the part used to merge zombies.