Taking inspiration from the prototypes for the past levels is META as hell and I love it. Another thing I'm a fan of is the Sonic 3D Blast soundtrack. I know the past versions retaining the "JP" tracks is a reference to SCD's soundtrack having the same quirk, but I would love to make some "past" remixes of S3DB music for you if you'd like.
I get the hesitancy behind starting a thread on your hack without a release, but in this case, with how much content you've provided in previewing, it's more than warranted. You can hit up any of the staff as always if there's any question of whether a thread is warranted. As for the project itself, well done as usual. Hopefully if things start freeing up with life, I can finally chuck you some Mode 1 stuff.
