The game uses an action gauge similar to that of many earlier Final Fantasy games, with each character taking turns selecting abilities from a unique list of 2-5 spells. Still, there is a surprisingly large amount of depth to be found in the game it's merely concentrated in its battle system. The game's story isn't particularly innovative or deep, but no one would expect it to be, given how often characters break the fourth wall. The Special Disk that was released later includes both the original content and the Plus Disk, and aside from a few gameplay tweaks, its most notable contributions are a new soundtrack and the option to use customized character portraits.
The Plus Disk expansion added another 10 bonus floors filled with even more challenging battles, as well as 8 additional characters. The original game features 20 floors to explore and up to 32 characters to recruit. Aside from its dungeon crawler roots, it also features numerous Shout Outs to not only the Touhou Project series, but also many other video games and anime. It draws heavily from dungeon crawler RPG titles such as Etrian Odyssey, with a heavy emphasis on exploring a huge dungeon filled with many complicated floors. Touhou Labyrinth (also called Labyrinth of Touhou) is a fan-made RPG starring the cast of Touhou Project.
