Success breeds imitation, and in the world of video games this is no more apparent than in the realm of puzzle games. Casual game company PopCap struck gold with Bejeweled, a simple and addictive grid-based gem-matching game, and it wasn't long before competing casual game company iWin conjured up its own, Mayan-themed Bejeweled knockoff called Jewel Quest. Now MumboJumbo is getting in on the action with 7 Wonders of the Ancient World for the PlayStation Portable, which cribs more directly from Jewel Quest than Bejeweled, effectively making 7 Wonders a knockoff of a knockoff.