I think there should be a clock in this game so once you use all the shapes the clock would start ticking and if the shapes didn't fall over, even if they were wobbling, you would pass the level. This idea is similar to Super Stacker 2's clock in the top left corner. I think this would make it a bit easier.
 "Sushi Cat"){kind=icon}
 "Super Crazy Guitar Maniac Deluxe 3"){kind=icon}
 "Pwong 2"){kind=icon}
 "Perfect Balance 2"){kind=icon}
 "Ragdoll Avalanche 2"){kind=icon}
 "Kongai"){kind=icon}
 "Infectonator : World Dominator"){kind=icon}
 "Platform Racing 2"){kind=icon}
 "The Company of Myself"){kind=icon}