Crush 3D
CRUSH3D focuses on manipulating the environment to solve puzzles. In the game you have the ability to “Crush” the world, which flattens everything from 3D to 2D; you can use this ability to traverse huge gaps by bringing platforms closer together, or flattening the world from above to get to areas that would normally be too high to reach in 3D.
SEGA have also implemented Streetpass so that players can pass gifts and place them on levels for others to find. Also Play Coins can be used in the game to buy more content, which is an interesting feature since little or no games except the ones in the StreetPass Plaza utilise this function.