All of the Super Smash Bros. games have sold 69 million units combined, making Super Smash Bros one of the most successful fighting series ever. Broken down, the data is quite interesting. The original Super Smash Bros. on the Nintendo 64 has sold 5.55 million to date. Super Smash Bros. Melee has sold 7.41 million copies, Brawl has weirdly sold 13.32 million, and Super Smash Bros. Wii U and 3DS sold a combined 15.01 million. Super Smash Bros. Ultimate was the most successful, selling 27.4 million. The Super Smash Bros. community recently noted that Super Smash Bros. Ultimate is the most popula…