Embedded image USEMAPs make me feel old. I remember when you couldn't even reliably support them in all web browsers. For each clickable image map you also needed a GET/POST form 'CGI' program that was passed only relative image coordinates of the click and had to decode it server side.
I remember that 199X trend, where you would re-create an FBI warning: orange tape, gif of a spinning warning light, etc. Expect this to be the same era joke.