DraStic is a fast Nintendo DS emulator for Android.
This is by far the best NDS emulator for Android devices. On my HTC One M8 it plays everything I've thrown at it with full speed, great sound, and no glitches.
* Customize the placement and size of the DS screens, for portrait and landscape modes
* Fully supports add*on controllers, and physical controls in devices like nVidia Shield and Xperia Play
* Save and resume your progress anywhere with save states
* Tweak your gaming experience with a database of thousands of cheat codes
* Synchronize your save games with your online Google Drive space
* Increase emulation speed with fast-forward