The only difficulty in this level were the zombies that had slightly higher health than normal Mummy Zombies.
Enemies
Conehead Mummy x1
★
Health: 4586
Fighting Power: 457
First Strike: --
Special: [Low-level attack and defense]
Attack: Deals damage to target.
Skill: The zombie uses its bandage whirlwind to attack, posing a threat to enemies in front of it.
Leader Skill: [Primary militantness high]
Flag Mummy Zombie x2
★
Health: 3780
Fighting Power: 452
First Strike: --
Special:
Attack: Heals the ally with the lowest health by percentage.
Skill: Waves a flag, encourages zombies, heals three allies with the lowest health by percentage.
Leader Skill: [Primary militantness high]
Strategies
Drag the plants you need into the lawn and you should win. Using other users' plants is recommended, as you will have more power.