Y'know, last time I checked, this was broken on the emulator and Ruffle, as it was just a glitchy loading screen. Glad they fixed it, though some backgrounds are void, but thats fine. This is so far the best scene creator i've ever seen, because of it's many sprites, ATP Blood, Possessed Engineer, and that its all pretty organized. Hard to learn at first, but once you get used to it, its just really good. Love it, 5/5, 10/10.
Checking in a few months later, everything has been fixed. My rating is now increased to a 6/5 and a 11/10. Keep it up!