Use the arrows (laptop/desktop) and your finger (touch screen) to move. Be the first to get to the top of the tower and you will get 150 coins. You can use these coins in the shop and get items for your inventory. All towers are possible.
Thanks to @MaxyBrian for the original project. Look on @ElliotSurridge for more cool projects. By the way players can see your user name so if you want to keep that secret play logged out.