Thanks for the review!
The enemies have one turn for every two player turns. This means that every time the player moves twice, the enemies move once.
I agree with your statement about the music! Something 8-bit-styled might fit much better.
Regarding the rigid camera design: I did consider implementing smooth, velocity-based camera movements, but I was worried that it would clash with the vintage aesthetic of the game too much, so I ultimately decided not to.