Anyone know of any great Scratch Games to download?

Okay, so my next project is to work with a group of 5th grade students to create an interactive map of their book...Island of the Blue Dolphins.  So each of the kids are going to draw their own island as the stage and then they are required to create four interactive features on their island.  The interactive features would be things that related to the book...about the characters, setting, plot or major events.  Creating the interactive map with information for each sprite would be part one...but then I wanted to expand the project so that kids could make this interactive map a game.  This is where I'm a little iffy about my Scratch skills.  I was thinking that I'd head to the Scratch site and try to download a few games to see what kinds of scripts are used for games.  I know there are a lot of games out there so I was wondering if  anyone had seen any great games as examples that I could download and pick apart!

Any help or ideas would be appreciated!  I'm so excited about this project...I keep finding more and more curriculum connections for Scratch!

Thanks
Molly