When using any emulator, you should only use game files (ROMs) that you have personally dumped from cartridges you legally own to comply with copyright laws. Download the APK from Uptodown - DraStic DS Emulator
While 3DS is out of reach, your KitKat device can still be a powerful retro machine for these systems: 3ds emulator for android 4.4.2
: Emulators like "My Boy!" or "John GBA" are very lightweight and run perfectly on 4.4.2. When using any emulator, you should only use
3DS games require OpenGL ES 3.2 or higher for 3D rendering. Android 4.4.2 generally only supports OpenGL ES 2.0 or 3.0, making it technically incapable of rendering 3DS graphics. The Best Alternative: Nintendo DS (NDS) Emulation When using any emulator