In the Backyard Battleground, the Zombies' bots are in need of help! Whether they've been tasked with difficult missions from Zomboss, or they're just terribly allergic to plants - it's a surprisingly common problem for bots, you know - it's up to you to give all four of them a hand. Complete these quests, and you'll earn a nice stack of coins, and unlock a customization!

ZEROxFUSIONZ has a great guide that will help you track down each of these busy bots, and he shows how to take on the waves of powerful plants you'll need to do battle with.

You can find more videos from ZEROxFUSIONZ on YouTube.