I loved playing this! The music, the look (even if it was simple models it all just felt right - nice, clear visuals) and the design of the boss battle. It felt like I was playing a proper boss battle, harking back to the days of the classic PS1 era games from when I was little.
For 48 Hours this is a brilliant result - really happy I played it and would love to see more if you ever expanded on this.
If you have time, would love to hear what you think of my game; https://itch.io/jam/gmtk-2019/rate/461074