Is there free video editing that provides clickable/rollover hotspots?

I'm looking to add some interactivity to my videos on my website and need a tool to make non-YouTube videos or similar have interactivity. I don't necessarily want online software that makes me host my files with them either, it costs too much for what I'd be doing. I'd like to be able to create click-able or roller over hotspots that pops up a description of item...the more interactivity the better. Any help or point in the right direction is much appreciated. I haven't done much in video editing so I don't know where to start...Google has sent me to plenty of laughable applications costing well over my limit. My purpose is to make video quizzes that are interactive. I'd prefer software that actually changes the video completely and doesn't require hosting if that makes sense...anyway I'm open to any suggestions even if it's not exactly what I'm looking for.