It is indeed quite impressive, as for MV/MZ while they are fantastic, every export no matter the device will export to a web format, on PC it uses NW.js (node webkit), like CrossCode does, this makes games easier to hack and even flat out edit, though to be 100% honest, no game is safe from that regardless of the engine lol.
As for reverse engineering the shader, turns out now you need to link your own gl program it looks like, and store the frag/vert shaders in an object, I just need to figure out why/how a glProgram is now required and how to tie that to the renderer, gonna attempt to just bootleg it and use the main app's glProgram