Just watched the video, it was about what I expected. My biggest issue is the Cotton comment of "nothing special beyond the keyboard lights." I'm guessing you guys played the first stage and then went with the awful HG101's article of it being a straight port of the arcade game...... This is flat out wrong, if you actually compare it to the arcade you'll notice most of the sprites are completely redrawn, tons of added parallax, and the stage 5 and 6 bosses are completely new and exclusive to this version, while all returning bosses have completely different attack patterns. Instead of doing a cheap port, Success went all out and made more of a Cotton+ or remix. Yet know one seems to realize this due to good old HG101's failures.
For internal, my favorite soundtracks are Direct-X, Code-Zero, and Y2.