It feels really awkward that the cursor is still showing alongside the aiming reticle, and you can see the reticle lagging behind the cursor.
There is a variety of enemies, but they all do the same thing.
Art looks excellent but again it feels awkward to walk over a chasm or whatever the black parts of the floor are supposed to be. Music is good and sound when you hit an enemy packs a punch and feels real, and I like that.
Overall it is a fun game, nothing genre redefining but it is fun.