I had a lot of fun with this game, particularly with the first three levels. I love the concept and atmosphere. Exploring tombs, striking down skeletons with torches, all great. I did not expect 2D skeletons, but I like them. The music and skeleton sounds all fit very nicely.
It was very dark, and the environments all look very similar, so I had difficulty knowing where I was at times. I got to the end of level 4 many times without realizing it-- I thought it was a new room, and I didn’t think to turn left.
I don’t mind difficulty, but I felt the later levels were unfair. I was often killed by skeletons who appeared right before me. Sometimes skeletons walked inside of each other as a single unit, so I struck down one skeleton only to be killed by the hidden second skeleton.
The fifth level in particular seemed unfair-- the skeletons could activate the arrow traps, but they couldn’t be hurt by them. Timing my runs through the arrow traps became impossible when the skeletons kept blocking my way, so by the time I managed to complete it, it felt more like a stroke of luck than anything.
Nevertheless, I really liked the first few levels. The breakable wall mechanic was introduced well. I would definitely play more of this game, especially if there was a bit more exploration. Great job!