Thank you so much for the kind comment! Yeah I had a bunch of trouble with the unity to browser transition. It never crossed my mind at the time that there'd be issues between transitions, so I had no time to fix a lot of stuff.
Also about the enemy, that may have been a bit intentional, sorry! I thought the level itself was short enough that the players wouldn't mind a "cheap" death - although, my intent was for there to be one just when you get the second rune so much earlier in the level.
My initial desires were to make dark/light objects still semi-transparent or visible even when in the other world, but unfortunately being a visual thing, that had to get cut. So in that version of the game, that sort of "cheapness" wouldn't be there.