Tent

A tent is an object carried by Imp Porters that, when the latter reach a Gold Tile, drops and spawns zombies until destroyed. They seem to be made of cloth, poles, ropes, and fabrics. They also seem to have kettles, teapots, and blankets inside of them, as those items appear while the Imp Porter carries the backpack that will generate a tent. The zombies that can spawn are Adventurer Zombie, Conehead Adventurer Zombie, and Buckethead Adventurer Zombie.

Backpack
Backpacks are items carried by Imp Porters. They act like normal tombstones and surfboards that are dropped when a Imp Porter is killed before he reaches a Gold Tile. When they reach a Gold Tile, the backpack will become a tent. Some items that they include are: ropes, poles, blankets, tea-pots and kettles. Like the surfboard, it cannot be removed by Grave Buster.

Trivia

 * Dropped tents and backpacks can crush most of the plants, including Ghost Pepper.
 * Tents may be inspired on an unused Dark Ages tombstone, as both spawn zombies from the tile they are.
 * The level will not end until the player destroys all Imp Porter's tents, as they spawn zombies. However, this is only if the zombies keep spawning; quickly killing a spawned zombie without destroying the tent will end the level with the tent in place.
 * Sometimes when an Imp Porter drops his backpack, the backpack will self-destruct. This happens when an Imp Porter dies in the last column (where the zombies enter the lawn), or when there is already a backpack behind him.
 * The backpack appears to be damaged, as there is a patch sewed onto it.
 * It is similar to the arcade machine Arcade Zombie pushes, as both work as a type of obstacle against plants and summon the basic trio.
 * Dropped backpacks can be seen as the oppisite of Surfboards, While the surfboard will fall on the left tile of where the zombie died, the backpack will fall to the right of where the imp died.