I discovered a bug in this version, I'm not sure if there is a place to report those so I'll put it here:
I was on the 1st level of new game++, where I encountered the blue slimes that shoot 3 projectiles on death, and was hit by one such projectile (though it seemed like it might just barely miss me).
During this run I obtained the item that removed all hearts and used coins as health instead, and when I was hit by the blue slime projectile I had over 200 coins. Despite that, I was killed instantly, and when the window informing about the progress made in that run appeared, it did so multiple times (see screenshot below)
This was my 4th or 5th run since installing Ancient Dungeon from the Oculus App Store, but despite that the end screen listed it as 39th one - as you can also see on the screenshot.