Mr. Game & Watch (SSF2)/Forward aerial

Mario Bros., also referred to as Mario's Cement Factory, is Mr. Game & Watch 's forward aerial in Super Smash Flash 2, being ripped directly from Super Smash Bros. Brawl, Melee and Nintendo 3DS and Wii U.

Description
When the move is performed, Mr. Game & Watch will take out a solid cement brick separated into 2 parts, and then shoves it forwards to strike the opponent with it. According to the official melee website, this move originates the cenements from Mario's Cement Factory, however, the object looks closer to the packages boxes from Game & Watch version of Mario Bros.