Dude, I love this idea for a fangame! I'm mainly leaving this comment, though, just to express that I hope the final game has a sizable amount of focus on the PC-98 Touhou games. You see, those games (especially Mystic Square) actually have a ton of references to SMT themselves! There's the fact that both Makai from PC-98 Touhou and Makai from SMT2 have six crystals that make a hexagram at the entrance to each, there's how Pandemonium from Mystic Square looks almost exactly like the Kether Castle from SMT2, there's how Yumeko's design is heavily inspired by Hanoun from SMT2, and of course there's Touhou's Alice taking a lot of inspiration from SMT Alice (as opposed to just Alice in Wonderland). And there's probably more similarities between those games than I can think of right now! So I'm really hoping that there's a good PC-98 Touhou presence in the full version of this SMT-inspired Touhou fangame. Even just a single (but full-blown) dungeon based on PC-98 Makai would make me happy! Thank you, and good luck.