Jumbo is a WordPress menu plugin that you can add to any theme, and it comes with a bit of a unique twist. Next to allowing you to build a bold, memorable and fully responsive full-screen menu, you can also create an optional, secondary drop-down menu.

Demo
http://codecanyon.net/item/jumbo-a-3in1-fullscreen-menu-for-wordpress/8103070

Download
https://www.filecad.com/e4ol/Jumbo-v3.4-%E2%80%93-A-3-in-1-full-screen-menu-for-WordPress.rar