The theme was released in 2003 and discontinued in 2004. The theme focused on the Gravity Games, a multi-sport competition that included summer and winter activities. The set boxes were sometimes illustrated with photographs of sports professionals next to their signatures. The toy sets for the Gravity Games sub-theme included: 3535 Skateboard Street Park Miniature figures: 1 3536 Snowboard Big Air Comp Miniature figures: 1 3537 Skateboard Vert Park Challenge Miniature figures: 2 3538 Snowboard Boarder Cross Race Miniature figures: 2 3585 Snowboard Super Pipe Miniature figures: 2 Basketball (2003–2004) The Basketball sub-theme was launched in 2003. In the first year it was licensed by the National Basketball Association. The minifigures featured spring-loaded legs and hand designs that enabled players to use the minifigure to perform actions, such as shooting and passing. Like the earlier football sub-theme, the set boxes featured images of real NBA players and the toys were decorated with logos of Spalding and NBA. The largest set was Ultimate NBA Arena. Various players were recreated in minifigure form, including Shaquille O'Neal, Jason Kidd, Kobe Bryant and Steve Nash. The minifigures were designed to look like the real players and was the first time that non-yellow minifigures appeared in Lego sets. These realistic skin tones appeared in later themes, such as Lego Harry Potter and Lego Indiana Jones. The toy sets for the Basketball sub-theme included: 3427 NBA Slam Dunk Miniature figures: 1 3428 One vs One Action Miniature figures: 2 3429 Ultimate Defense Miniature figures: 2 3430 NBA Spin and Shoot Miniature figures: 2 3431 Street Ball 2 vs 2 Miniature figures: 4 3432 NBA Challenge Miniature figures: 10 3433 Ultimate NBA Arena Miniature figures: 10 3440 NBA Jam Session Miniature figures: 2 3548 Slam Dunk Trainer Miniature figures: 1 3549 Practice Shooting Miniature figures: 1 3550 Jump and Shoot Miniature figures: 1 3560 NBA Collectors #1 Miniature figures: Ray Allen, Tim Duncan, Pau Gasol 3561 NBA Collectors #2 Miniature figures: Antoine Walker, Shaquille O'Neal, Tony Parker 3562 NBA Collectors #3 Miniature figures: Gary Payton, Dirk Nowitzki, Vince Carter 3563 NBA Collectors #4 Miniature figures: Kobe Bryant, Jason Kidd, Toni Kukoč 3564 NBA Collectors #5 Miniature figures: Allen Iverson, Steve Francis, Karl Malone 3565 NBA Collectors #6 Miniature figures: Steve Nash, Jerry Stackhouse, Paul Pierce 3566 NBA Collectors #7 Miniature figures: Jalen Rose, Peja Stojakovic, Kevin Garnett 3567 NBA Collectors #8 Miniature figures: Tracy McGrady, Allan Houston,