I could totally see this being put into a video game. It has those classic 8 bit sounds and crushy drums. It is very well made for the genre you listed it for. A couple suggestions I would make would be to vary the dynamics a little bit more. When I look at the waveform of the audio file, I don't see much difference except for the beginning. You should see dips and rises in your waveform. That is one way to gauge how you are using dynamic contrast. Another suggestion I would make is to pull away from the main melody and add some more variation. However, I like how you stuck with the melody throughout the whole song.