Mario & Sonic at the London 2012 Olympic Games is a collection of numerous events based on the Olympic Games. Mario & Sonic brings together the two titular characters and eighteen more from both franchises to participate in environments based on the official venues of the 2012 Summer Olympics in London. The characters are divided into four categories: all-around, speed, power, and skill.

Mario & Sonic at the London 2012 Olympic Games is a collection of numerous events based on the Olympic Games. Mario & Sonic brings together the two titular characters and eighteen more from both franchises to participate in environments based on the official venues of the 2012 Summer Olympics in London. The characters are divided into four categories: all-around, speed, power, and skill.