What the heck!? I haven't played Omori or Yume Nikki but I recognize the inspirations. To add another game to the pile of "inspirations that coincidentally I've never touched with a 30ft pole", I'd point to Earthbound. The battles, themes and sound effects, felt incredibly Earthbound and I've never even played it!!!
I've found this weird back-alley dimensional series of rooms (there's at least two of these rooms, they (almost) all have three doors at the top, sometimes the floor pattern is different, they lead to different areas in the map if you're lucky) trying to decipher this area was super tough (can't imagine why) and I'm not sure I explored even a small fraction of the duplicate rooms. I can see this becoming really difficult to finish, as the only OTHER avenue of continued exploration I could find was a weird haunted house themed area (floorboards and slimes with very tough enemies), and if that doesn't lead to new avenues of exploration, I'd be pretty much out of ideas for finding the ending.
I died enough times to see you CHEATING with the NUMBER OF GRAVES in the area between dying and reaching the bar, so I'd say I've played enough to give it all-around 5 stars for phenomenal gameplay and sound and looks.