MD.emu/NEO.emu/NGP.emu/MSX.emu/NES.emu/ GBC.emu/PCE.emu/2600.emu/GBA.emu 1.5.20

via http://emu-russia.net/en/

Robert Broglia updated his emulators for Android. Changes:
- Improved hq2x shader quality and speed;
- Added Scale2x shader;
- Fall back to default save path in internal storage if device has a read-only SD card;
- Fixed crashes when handling Bluetooth errors;
- Option to enable native external display support (shows game on external display and controls/menu on device screen);
- Misc UI tweaks and option reorganization.
News source: https://play.google.com