Autocatalysis of Unrecognizable Katzenjammer
The gameplay of the game features Sanae Kochiya as the protagonist and derives directly from that of Impossible Spell Card — a progressively unlockable act/scene scheme with bring-along items — alongside other components, such as the Quest system and the game's currency mechanic, of which by completing scenes or conquering objectives the player is given Miracle Points, of which they then are able to buy new items in the Shop to be used in the scenes.
|Quest list and description.|
|2,500,000 Scotch Orchestration||Get at least 2,500,000 score at the end of a scene||It's a nice first start! Let's see how long you last~!||30|
|High Altitude Soldier||Stay 20 seconds in total on a scene above Y 150||There is no point of collection in this game, my friend.||15|
|Natural Speedkiller||Clear a scene in under 10 seconds||Was it luck, or did you get a blessed strategy to end this conundrum?||20|
|Thrill Master||Accumulate 500 graze on a scene||Living your life on this risk, just to get a few miracle points? Well, I don't blame you, you probably need them.||10|
|Unfriendly Fire||Defeat a scene without hitting the boss with your main shot||You're sneaky! Such a skill definitely deserves some cool points! Though, why exactly would Sanae be avoiding to do that...||20|
- The following text is the game's prologue:
The Moriya Shrine.
Following the retrograde of the cards incident, Sanae couldn't help but notice something else was at play too. As the beautiful, blossoming explosion in the sky unveiled that its charm was actually maleficent - in her eyes -, Sanae sets out to investigate what sort of unknown fragments were those that scattered around Gensokyo. Guided by Kanako and Suwako, she seeks those who have been in contact with this miraculous jewel to try and retrieve those curious artifacts, while also trying to identify who could possibly be the perpetrator of this newborn incident.
Unbeknownst to her, other people were also trying to take advantage of these strange powers contained inside the fragments. What would it be of Gensokyo if this chaos isn't contained in time? It seems like it's up to the Moriya Shrine shrine maiden to uncover the truth behind all of this...