You don't need to compress them, all you have to do is to organize them

in any category you would like..... here is what you should do. click on Start, move your mouse cursor to Programs and the right click on Programs and the select Explorer....Now on the explorer panel you will see all the applications that you have, you can categorize the alphabetically or however else you like,, just create a folder called Games and Apps and drag the other Game or Apps folder into the newly created folder... then close the it all and open the Start/ Programs...
cheers