While true 3DS emulation is likely impossible on KitKat, you can try these options for other handheld Nintendo systems:
Almost all 3DS emulators require a 64-bit (AArch64) processor. Android 4.4 devices are almost exclusively 32-bit (ARMv7). OpenGL ES 3.2+: 3ds emulator for android 4.4.2
: Devices running 4.4.2 are usually 32-bit with very limited RAM (often 1GB or 2GB). 3DS emulation generally requires a 64-bit processor and a minimum of 4GB of RAM for playable speeds. While true 3DS emulation is likely impossible on