The section starting at 0:48 is super cool and sounds like a dark-sounding Kirby track. I like your game idea a lot too. Two final bosses fusing together would make for an epic climax to a game for sure! I also really like the return to the A section at the end and how you added more instruments to build the intensity up to those final crunchy chords at the end. Your organ sound fits very nicely in this track. Great job and thank you for sharing!