Unlike the other mazes of the dojo, the player will lose some items should they faint. Also, Pokémon can be recruited. After the Marine Resort's location is revealed, the player will encounter Jirachi, Suicune, and Moltres at B23F, B29F, and B40F respectively. In Pokémon Mystery Dungeon: Explorers of Sky, all three legendary Pokémon have been removed from the dungeon and placed in different locations. HMs are scattered randomly throughout the maze (they cannot be used inside any dungeon, but they are reusable).
After clearing the maze, Marowak will give the player a Brown Bow as a holdable item, which supposedly once belonged to his grandfather.
All of the Pokémon encountered in the Final Maze appear in the Dojo's various mazes (with the obvious exception of the aforementioned Legendary Pokémon). Therefore, the Final Maze could be considered a "spawning ground" of sorts.