Very well done, i am impressed. Controls and gameplay is super, I love the narration. If you polish this with a menu system, and even though the narration was good, if that is made with professional voice actor, that might improve.
Another thing is , I would have preferred slightly smaller character with bigger and more complex maps (maybe I did not play long enough?), but its a taste thing.
Overall 4.5/5 for me, very cool.