: Abbreviation for New Super Mario Bros. 2 Gold Edition .
: A compressed folder format; you would need a program like WinRAR or 7-Zip to open it and extract the .cia file. NSMB2GE-USA-CIA-RF-Ziperto.rar
: Stands for Region Free . While the base game is USA-coded, it has been patched or modified to run on 3DS consoles from any region. : Abbreviation for New Super Mario Bros
Files of this nature are typically used for emulation (like Citra) or on hardware modified with custom firmware. NSMB2GE-USA-CIA-RF-Ziperto.rar
: Indicates the game is the North American region version.
: This is the base game featuring the "Coin Rush" gameplay mechanic.