An incredibly beautiful and stylish game. The appearance is unyielding, the graphics are good and the enemies have a perfect AI.
The only things I would like to comment on are:
1) Sometimes, due to the simple colors of the walls (mainly black with some green lines) at the forks it takes a while until you understand where to go (a bit dizzying for me, but that's only because I'm more unfamiliar with such styles of games).
2) I mostly used the first weapon, because the second one gave damage too late, so it was better to take it and use only the first one.
I finished the game and I really liked the final level (though a bit harder).