Ok..first, it may be that your kids don't know about it now..but believe me, they will!! They will notice the Kim Possible CM's and will want to find out more - so if you have KP fans, prepare to do a mission or two.
You'll go up to one of the KP carts and get a FP that you'll use in WS to get your Kimmunicator. Each mission takes place completely in one pavillion...so either you'll be doing it all in Mexico, or France, etc...one hint...if you want to be in a certain area...when you go to pick up the device, say you've done all the missions except for....(you may be able to just request, but last time we were there, the CM asked if we'd done one before and we said yes, Mexico...he gave us the device, I said, "I hope it's not Mexico again" and he said it won't be..that's why he asked us).
At the end of the mission, the fnal step will be to drop the device into some sort of recepticle....if you get fed up and don't want to continue, I'm sure you could just turn it back in at one of the stands. I didn't time it, but it seemed to take about 15 minutes to complete a mission.