Thank you! I'm super glad you like it so much! My secret is that I can code like lightning in a logic brick system like this, everything I do will either come out well first time or require only minor tweaks to function, so I can leave testing to the very end and just absolutely race through the actual coding and then test at the very end. I'm actually surprised that people consider this a lot? If I'd had the full three days to code and not the one and a half I had (because the art took the rest of the time), I could've included an entire secondary area
I love including a lot of little things in my dialogue, and I tend to write for a very specific audience. I'll probably put less references in my next game though, since that seems to be a common sticking point :P
You're correct on the parallax map, and the trick with the sprites is simply that MV will allow you to make a spriteset as big as you please, so long as all of the boxes are the same size and your canvas is 4x2 of the spritesheet. All of my sprites have different heights (sans Keine's two forms, and the firefly colors), so they have their own sheets