Secret Fish Hunt - The player must read the note outside a Zomburbian house left by Dr.Using the key - The player must answer a ringing phone near the harbor after collecting five Golden Gnomes and take the key (a Gnome Bomb that doesn't have a timer) to the sewer near the crazy targets, and blow up a gate leading to the Chamber of Gnomes.Brain Slug - The player must find and talk to Brain Slug (a Super Commando wearing the unique Brain Slug customization) and must assist it three times by vanquishing Broccoli Bandit (a customized Champion BBQ Corn), Masquerade (a customized Champion Frost Rose), and Oddball (a customized Champion Electro Citron).The Germinator - The player must find and talk to the Germinator (a customized Future Cactus) and must assist it three times by vanquishing Big Burg (a customized Champion Pylon Imp), Swabbie Shaw (a customized Champion Captain Sharkbite), and Motor Face (a customized Champion Toxic Brainz).Hot Rod Chicken - The player must locate and destroy multiple crates three times for the Hot Rod Chicken as his vehicle upgrades are inside them.Snow Globe Hunt - The player must talk to Clam in the sewers and must find all 50 of his snow globes that are hidden around the Backyard.Bulls-Eye's Boat Blast - The player must talk to either Husky Muskie (a customized Kernel Corn) if a Plant or Sunken Duncan (a customized Scuba Soldier) if a zombie at the harbor and must shoot several gnome targets as either the Cactus or Captain Deadbeard off a ship.Dummy Shield - The player must talk to the Dummy Shield inside the Zombie base as any Foot Soldier class.Dandelion - The player must talk to the Dandelion inside the Plant Base as any Peashooter class.Backyard Missions are missions that can be found around the Backyard Battleground in Plants vs.