So you want to add a flashy navigation system to WordPress? Jumbo could be just what you need. This is a full screen menu that allows you to build fully responsive full-screen menu for WordPress. You also get a chance to set up a Gravatar image to appear next to your menu. The plugin is compatible with most WordPress themes.
Jumbo is highly customizable. You can change colors, add your Gravatar, include a background image, and more. While you get a full-screen menu, a secondary drop-down menu is also available for you to take advantage of. This premium plugin sets you back $10.