Samsung Galaxy Z Flip with Nintendo Switch Joy-Cons is the crossover we didn't know we needed - Yanko Design
The 6 Best Nintendo DS Emulators That Work on Android and iOS - TechBullion
melonDS for the Switch gets JIT support allowing most 2D games and some 3D to run without overclocking & Gears Of Kombat homebrew game (UDK Ultimate) for PS3, XBOX 360 and PC
The V60 dual screen is the perfect 3DS emulator. : r/EmulationOnAndroid