In Japan, the following titles were the highest-grossing arcade games of 1977, according to the second annual Game Machine chart. Both arcade video games and electro-mechanical games (EM games) are listed on the same arcade chart. Namco's EM racing game F-1 was the highest-grossing overall arcade game for the second year in a row, followed by Taito's racing video game Speed Race DX (its predecessor Speed Race was distributed as Wheels by Midway Manufacturing in North America).[1][2]