Saw this at the review to review thread. The hi-hats could be a pair of dBs louder, as well as the general volume of the song.
Anyway, the synths are ok for a videogame theme, I liked a lot your use of the slide/porta tool, but I suggest adding some chorus or detune to the chords for more wide sound.
About sidechain, it is also good, not too long not too short, there are many methods to do sidechain but I didn't understand what you mean with fake saw ADSR envelope. I guess you talk about sidechain with an envelope controller and linking a bunch of gain parameters to it.
About the score itself, not sure if on the description you talk about a 'prompt' you used as one from an AI music generator which let me tell you, if that's the case, your melody would be based on something you didn't make, even if you cast it away and decide to change the style or just some notes. That's a big no for me in terms of originality :\
Keep learning more tricks, there's a lot of cool things. And remember to not rely on prompted music, that won't make your scores interesting.