Mario is the most popular video game franchise of all time, selling over 260 million games worldwide. The character Mario appears in over 200 games on every Nintendo console ever made, and in the 1990s, a survey discovered more children recognized Mario than Mickey Mouse. While the Mario series mainly features platform adventures, often involving the safe rescue of Princess Peach, it also includes role-playing, puzzle, racing, and educational games. The franchise further includes television shows, a live-action movie, comics, and promotional materials. Created by Shigeru Miyamoto in 1981, Mario first appeared as the protagonist Jumpman in Donkey Kong. As his name suggests, the character completed levels by jumping over barrels and climbing ladders to rescue the Lady kidnapped by Donkey Kong. In certain advertisements, Jumpman was named Mario, after the landlord of Nintendo of America's offices, and the name stuck. In 1985, Miyamoto produced the Nintendo Entertainment System (NES) game Super Mario Bros. The game takes place in the mythical Mushroom kingdom and stars Mario as he attempts to save Princess Peach from an antagonistic, anthropomorphized turtle named Bowser. Similar gameplay, reoccurring characters and power-ups link the games of the main Mario series. In almost all cases, the goal is to navigate the titular character through various levels or worlds, each of which concludes with a castle or dungeon and a boss fight. Nintendo released Super Mario Land 2: 6 Golden Coins for the Game Boy in 1992. The game served as a sequel to Super Mario Land, which placed Mario in Sarasaland as he endeavored to rescue Princess Daisy from the clutches of an alien named Tatanga. After the events of the first entry, Mario returns home to discover that his enemy, Wario, has taken over his castle. Mario must collect the 6 Golden Coins, which allow him to re-enter his castle, in order to stop Wario. While the first Super Mario Land functioned similarly to the original Super Mario Bros. game, Super Mario Land 2: 6 Golden Coins takes after Super Mario Bros. 3 and Super Mario World by featuring world maps. This game is significant for introducing Wario to the series. Super Mario Land 2: 6 Golden Coins sold over 11 million copies, making it a successful addition to the franchise.