Ahfinally, my submission is now perfect! I present to you all
Dread Machine. This features custom music (ports, original ports, and a custom composition), Some ExGFX (big thanks to Edit's tool for this), and the perfect difficulty for a true Kaizo experience.
Also, don't worry, the music still sounds good even with slowdown ;)
I made a standalone game once, look for Seabug Stampede on Google Play.