Super Mario Galaxy 2

Super Mario Galaxy 2 is a 3D platformer game based on and around 3D planets, grouped into levels known as galaxies. Planets and galaxies each have varying themes, sizes, landscapes, and climates. The player controls Mario (or later in the game, his brother Luigi, though using him is optional), who has special abilities such as the "Spin" attack, long jump, wall jumps, and a variety of somersaults. As in the original, the objective of the game is to travel to the various galaxies and collect Power Stars, which are awarded by completing levels and accomplishing tasks and are used to gain access to later levels. The game retains various gameplay mechanics introduced in the original, such as the blue Star Pointer that allows the player to collect Star Bits and shoot them at enemies, levels that restrict movement to a 2D plane, balance ball levels, and gravity-reversing background arrows.