Incredibly appropriate music tracks for the visuals. Put me in the Mechaverse ready to roll. I like the upgrade system with each new boss. It felt great to get more powerful as I progressed and it's what kept me coming back to push further and further.
This was a short, fun jam game. As noted below, the doors were a little tricky to navigate. Other than that, I would have liked it if each boss had a health gauge so I could feel myself progressing through each individual battle.
Overall, really well done and a great solo dev entry. Good work.