It is a very good game indeed. Well made and challenging as f*ck.
There are some drawbacks though.
- Music is descent but get way to intense after just two minutes or so.
- No option to just skip the music and keep sound effects.
- I don't like the floors where spikes comes up when you touch them. They would be ok if I could see it was a floor of that type, but now they add difficulty in a bad annoying way.