I have added a global leaderboard where players can submit their high scores and compete to see who are the top 10 players in the world. I have added some new music. I fixed some bugs. 

The bugs that I fixed are:

Taxis spawning too high or too far at the start of the levels 

Difficulty in the Cape Town level has been adjusted

I changed the look of some of the buttons (Still need to fix all of them)