Creator 3 in 1 sets come with instructions for three different models from the same bricks, built one at a time. The trick is in the design. Every part has to work in all three models, so the tiger of 31129 Majestic Tiger also builds a panda and a koi fish, and many builders keep the parts from a set as a starter supply of ordinary bricks.
2009 LEGO Sets
2009 celebrated the 10th anniversary of LEGO Star Wars and the 50th anniversary of the LEGO brick. New themes included Space Police III, Power Miners, and a revival of Pirates, while Agents 2.0 continued the high-tech spy concept. LEGO Mindstorms NXT 2.0 refined its robotics platform with enhanced sensors and programmability. The year also saw the conclusion of the original Batman line, Exo-Force, Mars Mission, and Belville, as LEGO phased out older themes in favor of new directions.