Since the Wii era, Nintendo typically offered retro games from their older consoles through the brand Virtual Console, using first-party emulators to run the games on their newer consoles. However, starting with the Nintendo Switch family, they would not use the "Virtual Console" brand. Instead, Switch Online subscribers can access apps to play retro games for antecedent video game systems, with the emulation software for the service mostly handled by NERD. Games with multiplayer modes support both local and online play.[52][53][54][55] During its first year, the Online service distributed Nintendo Entertainment System (NES) games, and later added Super Nintendo Entertainment System (SNES) titles in September 2019. Nintendo has expanded both libraries over time.[56] Starting in October 2021, subscribers can purchase an expansion to play Nintendo 64 and Sega Genesis games; unlike the other systems, the emulation software for these consoles was principally done by iQue and M2, respectively. In February 2023, games for the Game Boy/Game Boy Color were added to the base Nintendo Switch Online subscription, while games for the Game Boy Advance were made available for those who purchase the Expansion Pack. In certain cases, some of these games have been reworked to support multiplayer gameplay for up to four players locally and online.[26]