Mega Man Legacy Collection is a collection of classic Mega Man games released on the Nintendo 3DS. It was physically released on North America on February 2016, with a special Collectors' Edition released on the same date, containing 6 postcards and the Mega Man - Gold Edition Amiibo figure.
The game contains Mega Man, Mega Man 2, Mega Man 3, Mega Man 4, Mega Man 5 and Mega Man 6, plus extra challenges and bonus material.
It was later released on the Nintendo Switch alongside Mega Man Legacy Collection 2 (which has Mega Man 7, Mega Man 8, Mega Man 9, and Mega Man 10) as Mega Man Legacy Collection + Mega Man Legacy Collection 2, which not only adds the amiibo challenges from the 3DS version, but also adds in amiibo challenges for the latter game as well.
Using any of the Mega Man figures unlocks 11 new challenges for the Challenge Mode. Of these challenges, 10 are made by fans of the games. People can see replays of the challenges you played, and you can also participate on Leader Boards.