Developer, studio or publisher name (who to credit in video)
orochi2k

What engine was used to make this / is this for?
The game is made with RMXP + RMVXA + RGD. A bonus asset is mainly for RMXP. But, likely can be used in any RPG Maker.

What challenges did you select?
There are many. Please check the project page for details. About the Theme: The game has bunnies that can be captured as pets that is also required in a side quest. The game has cards you can even play blackjack in a bar. The game has ashes everything is burning in one of two tutorials of the game. The game has etiquette about old traditions. But, what if all those are just a part of the mask? The challenges completed: Must point out that it is made specifically for this jam by indicating in the title (like, "MEGA MINUTIAE JAM EDITION!" or even, "Ash's Jam Version!") Game must have five bosses characters. Boss lists: https://steamcommunity.com/app/1519140/discussions/6/3056241240626241920/ Game's antagonist must be someone who would be considered LAWFUL GOOD. A certain angel may be considered "lawful good." But, he has his own idea about what is good. Game must feature three different possible endings. For now, there are 3 endings: the "happy" ending, the sleeping ending, and the defeated in any battle game-over ending. More will be added in the future.

18+ / NSFW content?
Yes, if you get into a girl's hotel room when exploring. But, you will get a warning ahead. It's up to you to do something more NSFW after entering. (No adult-only level NSFW.) There is other mature content in the game as well. Details can be found on the Steam page. It's likely a 16+ game right now.