VIBES. The music is really spot-on, with a very distinct chiptunes set reminiscent of early Gameboy games. The menus and animations even have something to the quality. Dunno if this is a hack or not, but wow, the dev really hit all the sweet spots.
I had intended for this to be a 5-star review, but itch is not letting me paste text in the review section unfortunately. Added the 5 without the text though!