There are some great rides at Hershey. At Chocolate World, there is the tour ride that the previous poster mentioned - and you get a free sample at the end. There is also a cute little 3D show, that you have to pay extra for, but it's only a few dollars a ticket. It's worth seeing once, and at the end you get candy.
WARNING - There is a store there full of what else? Chocolate. Well there's twizzlers and other Hershey products to. So be pre-warned. That was always my weakness.
In Hershey Park itself, there are a lot of good rides. My favorites are Great Bear and The Claw.
Outside the park there is the Hershey shopping outlets, which is, not a mall, but there are plenty of shops down there anyway. My favorite shop is the scrapbook store, Times to Remember.
Are you eating out? Where are you staying? There's a Red Robin next to the shopping outlets, which is good for burgers, and a non-fancy meal. There's also two little coffee shops I like, Cocoa Beanery, and I can't remember the name of the other one, I think it's something like Bread and ???
For a extravagent meal, there's the Circular Dining Room at the Hotel Hershey, and there's also a spa there with chocolate baths / wraps.