Really fun game! This is the sort of thing that makes me wonder how it was made in just a month. I had a lot of fun with it up until the final boss... I just could not figure out how I was meant to approach it.
Aside from that I felt like the player was a bit too fast for the environment... it gave me a bit of a headache at some points in fact with how fast the textures were going by. The head bobbing probably didn't help with this either.
I see some other people here had trouble reading the font, but I could read it just fine and thought it fit the style really well. Maybe it would be good to have an option to switch it out for a more standard font, make it more accessible without ditching the stylized font altogether. Overall this was an amazing entry, great work!