how can i display all categories in images n menu bar both

I am using opecart V1.5.6 I want to display categories in menu as well as in image display form. But could not getting that how can i do this.

so please help me regarding this. Sample screenshot is attached which exactly i want.

Checkout the extension of all category display:

You can display all parent category in menu, image format and button format.

Show All Categories Extension with image

Cheers.