Quite fun game.
I like style very, for me it reminds some very old videogames where they used only simple geometric shapes.
Same for sond design - simple but effective.
I like the mood - descending deeper into dark unknown place.
Balance is maybe a little off - battery runs off quite fast, but batteries are rare. I could use less battery by memorizing levels, but Iḿ not sure that this is intended approach.
My record is reaching level 86.