If anyone is looking for a pretty unique experience in Flint, I would recommend checking out one of the economic redevelopment tours in Flint organized by Downtown Development Authority.

Here is a link: http://www.whatsupdowntown.com/media2.asp

These are really interesting tours that look at various projects going on downtown, which the casual visitor to the area is likely to miss. (For example, the OP is probably referring to Genesee Valley Mall, which is actually in Flint Township and not the city).