Sorry it took a little longer to get around to reviewing your song, it was a very short list. I HAVE NO EXCUSES, I AM A TERRIBLE FRIEND AND LOVER. Here, I started to quarter myself as punishment. Take my intestine and run as fast as you can in the opposite direction with it, it's the only way I'll learn my lesson.
So I really loved your track, I had to open the score sheet to give you the best feedback possible. I came down hardest on production with an 8/10, the feedback your about to get might seem a little extra or infuriating. Though I loved your style I can guarantee certain headphones are going to sound thinner and possibly painful. You can counter that by pushing the bass tones a little harder. Audio Technicas in particular offer up a flat response that can really hide sub sonic frequencies in such a manner that makes bass music sound wrong. Even with my subbier Sennheiser's the bass is noticeably lacking. This is a mastering issue, the track might sound better on your gear but I specifically own a few pairs of headphones and monitors to try to get a better idea for how something I write is going to sound to others.
Though a track can become over compressed and brick unnecessarily, something I like to tell people is "you need to mix a few bricks to understand your limits." A compressor could help amplify your bass tones a little more which will give the track a little extra power. The intro is most obvious, that bass could have been more potent. The climaxes you wrote are almost full, there's not much more room but when I warned you about the feedback being infuriating, this is it. I'm nit picking that bass. It sounds a little more potent at 3:20 but I'd have included one or two chromatic slides to help distinguish it from the lead and give it a little more organic style. Genres like nuero or dubstep perfectly merge the subs with the leads but since your instruments are so different from each other I'd have gone a little harder in distinguishing the bass from the lead with bass melodies that depart from the harmony a little bit. The final two minutes in your track could have used some legato bass tones and chromatic pitch slides to drive the track across the finish line.
I took one point off "technicality" and one from "emotion." I probably took one from emotion because my issues with the bass will effect the over all power and delivery of your climaxes. Technicality can be unfair to judge for Newgrounds competitions when people are mostly just sitting in their chairs writing music with mouse and keyboard but that score might also loop back to the bass just holding down a tone the entire time. For a bass tone I can make out so obviously, it just kind of sits there doing one thing the whole time. That sub was practically crying the entire time like "NO ONE PAYS ENOUGH ATTENTION TO ME. EVERYONE TREATS ME LIKE I HAVE ONE JOB BUT I CAN DO SO MUCH MORE. I'M TIRED OF BEING LOOKED DOWN ON AND TREATED LIKE MUD. I HAVE PERSONALITY, I'M MORE THAN JUST THE BASS GOD DAMN IT. I WENT TO COLLEGE." At least that's what I heard. I'm speaking directly to your sub bass right now, it's going to be ok girl. I could hear you loud and clear behind everything else. You'll be strong, we just got to fatten you up a little. As soon as we can get HalfDemure to start paying more attention to you I suspect you'll become one of the most potent aspects of their music. You're more than just "the bass," you're a hero. You hold everything together. We love you... bass.
Sorry if this isn't the review you were expecting, I've been really busy lately but I'm glad I got another chance to listen to this. I remember loving it when I heard it in the queue. Have a lovely day Michino :3