melonDS - A Nintendo DS emulator with support for commercial games.
3D Ripper DX - With 3D Ripper DX you can:
RetroArch - RetroArch is a frontend for emulators, game engines and media players.
3D Analyze - With the help of 3DA you can change different graphic options under DirectX 8 and OpenGL.
nds4droid - nds4droid is a free, open source Nintendo DS emulator written for Android smartphones.
Windowed Borderless Gaming - Play all your games in full screen windowed borderless mode.