The mission is the focus of Time and Darkness demo, where the player will play as a Lv. 12 pair of either male Turtwig and Piplup or female Pikachu and Chimchar.
Jobs here are E-C rank by default, depending on the floor.
The early floors are small, featuring around 4-6 rooms, 1-4 items on the ground, 2-4 enemies at the beginning and 1-2 Wonder Tiles. Later floors are larger and feature more enemies, items and rooms on average.
There are no special occurrences in this dungeon, and the player cannot be rescued if knocked out. The turn limit is 1000 on each floor. Certain items are guaranteed to always spawn on specific floors. Curiously enough, X-Eye Seeds spawn in this dungeon even in Time, which is otherwise restricted only to Zero Isle dungeons. The dungeon features water, with all of its inhabitants capable of crossing it.
If the player fails Spoink's quest twice, Wigglytuff will have Chatot call for the player's team and will give them a Reviver Seed, an Oran Berry and a Max Elixir.