First off, super cool artwork.
This was very enjoyable to listen to. I think this genre is very fitting for the overall theme and the game you had in mind. I especially liked Kingpin - to me this feels like a good boss fight track.
My main pieces of feedback was that: 1.) While there's nothing wrong that the full submission feels firmly in one genre, but to my ears each track follows a somewhat similar flow and structure to it despite having different tones (where the drums come in, when the track hits its peak, etc.). Having a touch more variation either in the arrangement or the composition could be effective here IMO. Somewhat nitpick, but; 2.) I kinda wish we got a little more to go off of on a track-by-track level just because I'd be curious what your thought process was for each piece, and how they each contribute to your vision.
Thanks for sharing what you've made, and keep up the good work :)