I love the sounds and the idea of putting the whole keyboard and making a story with the letters. And like you used the first letters to name the places. I feel like it was really fun to play, however after a 10 min, I think, of playing I got a screen with two "player" "letters" (what ever to call them) and I was not able to see anything else and to play for longer. (it happened at when there was about the number gang). Also a minimap would be helpfull.
In conclusion, I really liked your game and I really enjoyed playing it (I still love the sound effects). :)