Thanks for the tip TesfaN.
For the ones who want it:
Tesfan Levelbug15 Mar. 04, 2008
My tip for people is that, the way I got the hard badge, I simply waited until everyone but the 3 green balls game had died, and then just played that over and over again until I hit 5x
 "Grid16"){kind=icon}
 "Balloon Invasion"){kind=icon}
 "Genghis Khan"){kind=icon}
 "Follis"){kind=icon}
 "Wizmaze!"){kind=icon}
 "StormWinds 1.5"){kind=icon}
 "ZunderFury"){kind=icon}
 "Shooot 2"){kind=icon}
 "Protector"){kind=icon}
 "Sola Rola - The Gravity Maze"){kind=icon}
 "Kermix"){kind=icon}
 "Car Balls"){kind=icon}
 "Ether Cannon"){kind=icon}