Level 5-12 is a bonus level and also the twelfth Roof level in Plants vs. Zombies: Journey to the West. The player must pay 20 gems to gain access to this level. To complete the level, the player must produce at least 3500 sun.
Although Gargantuar is a slow zombie, it is has a high amount of health and can instantly destroy your plants by smashing them. Hypno-shroom, Garlic, Wall-nut, Tall-nut, and Pumpkin are useless against it. Once it is damaged enough, it will throw its Imp. The player must deal with its Imp as well as the Gargantuar. Even if the player's defense is good on the Gargantuar, if they lack Imp defense, it will eat their plants and walk to their Roof Cleaners or chimney.
Since no Bungee Zombies will steal the player's plants, three of them will drop additional ambush zombies instead. A Squash or Cherry Bomb is recommended to prevent them from eating the player's plants.
The objective, however, will not be a big problem with Monk Flower.