The "Green Floor" is grass/moss, though I can see why you thought it was poison or acid. A less saturated color would have been more natural. As for the sound playing even when your health if full, that's a bug and it shouldn't play at all.
It is if you have ichthyophobia lol. Maybe a stamina bar instead of indicators could have helped balance the game because some actions could take less (or slightly more) stamina than others. Thanks for your input.
It's straight-forward and fun, I like it. Edit: This game was still running in the background even after I closed it, I am running this game under wine so it could just be a bug with wine.
Thanks, I considered adding a map item but I decided not to. I also considered signs for direction, but I thought it might take away from the labyrinth feel. Landmarks might have been a good idea too.