This game is fun! It's very relaxing to just skate around in the city, and there's definitely a solid foundation here.
If you're planning to make this game commercial, I would definitely suggest finding a native English speaker to translate/clean up the dialogue (assuming you don't have one). As it stands now the English is functional and understandable (and for a while I actually didn't know this was a foreign game), but there are times when it seems rather unnatural.
Can't wait to see what comes of this project :)