Mario & Sonic at the London 2012 Olympic Games comprises a collection of numerous events based on the modern Olympic Games.[10] The game brings together the two titular characters and 18 more from both franchises to participate in environments based on the official venues of the 2012 Summer Olympics in London. Each character has unique attributes which can serve as an advantage or disadvantage depending on the event. As with the game's predecessor, all player-characters are divided into four categories: all-around, speed, power, and skill.[11]