"Zuma" also offers the gauntlet mode, where a player can choose to play in a level they have already reached in adventure mode, and either practice to beat the level, or play in survival mode, where the difficulty in colors and speed of balls will gradually increase. The level classifications of the gauntlet mode, in order, are Rabbit, Eagle, Jaguar, and Sun God. A player is required to fill seven stages in practice mode or seven yellow bars in survival mode before advancing to the next level. Upon reaching Sun God, in which the balls move in constant speed even when nearing the skull, a player can continue endlessly, since the level classification has no limit in both stages and bars. The Japanese developer Mitchell Corporation claims "Zuma" infringes on the intellectual property of their 1998 arcade game, "Puzz Loop", which was released as "Ballistic" outside Japan. Mitchell re-released the design in 2006 as the Nintendo DS game "Magnetica". PopCap asserted that Zuma was "not an exact clone", with founder Jason Kapalka saying that he was "happy" with the idea of games being cloned by other developers, so long as the new version added to the gameplay of the game it had copied. The editors of "Computer Gaming World" nominated "Zuma Deluxe" as their 2004 "Arcade Classic of the Year", although it lost to "Sid Meier's Pirates!". The editors of "Computer Gaming World" nominated "Zuma" for their 2003 "Puzzle Game of the Year" award, which ultimately went to "Bookworm". They wrote, "From "Bejeweled" to "Rocket Mania" to "Zuma", PopCap has constantly found new ways to spell 'addiction.' "  A sequel, "Zuma's Revenge!", was launched on September 15, 2009 for Windows and Mac. "Zuma Blitz" went live on Facebook on December 14, 2010, and was described by PopCap as "the social adaptation" providing players with "the first competitive and cooperative iteration of Zuma in the game's history."