Tip: You can use Lunar Magic's Overworld Layer 3 Editing system to edit or create your own layer 3 images (castle bricks, fish, rocks) and apply unique effects per level via the Layer 3 Bypass in the main editor.
I'm a little confused on whether or not you're striving for accuracy bc the mix is nearly spot on as well as your GAIN placements where they matter most but then you use direct gain (ADSR equivalent $ff $e0) on samples who's ADSR should be $8f $e0. I recall another port you did doing the same thing. Regardless, its amazing how you keep up with the tracks switching channels everywhere so nice job! I ended up editing the name of the port to Demon Invasion bc I couldn't find anything (or immediate results) on wormhole compared to the other name.