This is a really fun idea. The pixel art and music are pretty cute, the game has a really cozy personality, depsite the rough nokia 3310 restrictions. However, I found the game to be a little bit frustrating in some places. Sometimes the character would stop proceeding, because of a wall that was just turned on behind him and there was a little bit of going back and forward.
It's a great idea, it just needs a little bit refining.