It is the first emulator to successfully run commercial GameCube and Wii games, and is still the only emulator capable of running commercial Wii games. Dolphin is an open-source Nintendo GameCube and Wii Emulator for Microsoft Windows, Linux, and Mac OS X (Intel-based).Sales of the 3DS were lackluster in the beginning, partly due to its high launch price, which caused Nintendo to drop the price by a third only a few months after launch. Its main competitor is the PlayStation Vita from Sony. The 3DS is backward-compatible with the DS and DSi.