The LEGO Dimensions Back to the Future Level Pack 71201 is a game expansion pack that allows players to build and play with Marty McFly from the popular Back to the Future video game series. This level pack includes a 3-in-1 build feature, allowing players to create different structures and play experiences within the LEGO Dimensions virtual world. Released in 2015, this product is part of the LEGO Dimensions product line, offering a unique and interactive gaming experience for fans of both LEGO and Back to the Future.