Super Mario Bros. Wonder Leaks Reveal New Levels and Powers Before October Release

Super Mario Bros. Wonder arrives October 20 but spoilers have leaked online, showing fans glimpses of the game.

Main sources of leaks are deleted tweets showing new levels and illegal PC emulation able to run the full game.

Nintendo doesn't approve of emulators or leaks, previously cutting ties with outlets leaking Pokémon content early.

Super Mario Bros. Wonder is the first new 2D Mario side-scroller since 2012's New Super Mario Bros U.

Fans are excited for the new elephant power-up transforming Mario and friends in the game.