A few years ago, Sony made a pretty big splash with that advertisement for its Bravia HDTVs that showed a zillion colorful bouncy balls roaming the streets of San Francisco:
It kind of got old when people started spoofing it in Halo (and also when some second-rate nightclub DJs began spinning a lame techno remix of the Jose Gonzales song playing in the background), but now the "colorful balls fall from the sky" ad trend has really gone over the hill. One word: Pokemon. Check out this promotional ad for the new Pokemon Diamond and Pokemon Pearl games for the Nintendo DS, due out on April 22nd:
They could've at least used paint geysers.