Jammin' good! Good cool creepy loop, with a hip hop sort of bounce. I liked this. The synth harmonies are top notch an in sync with this slick beat. Very nice. It's a bit too cool for a retro game sound. It actually sounds classic AND modern at the same time! Which is impressive. Well done!
I couldn't find anything that sounded wrong or out of place, though I suggest you make a longer version. Add more stuff in. Experiment and try different things! Make it more memorable and hip. Maybe a section of some heavier beats might work, to add more flavor.