Within the game's code are items colloquially known as "seeds" (their real names in the game's internal memory consist of garbled data) that spawn landscape objects (such as trees, rocks, or buildings) when dropped. The game uses these items to implement the layout of each randomly generated town.

Through cheating, it is possible to place these "seeds" in the player's inventory and spawn landscape features as they please, though they will not appear until the player has entered and exited a building. Placing these objects is irreversible, and it is possible to softlock or brick the game if they are dropped in excess or otherwise abused.