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

Nintendo GameBoy/GameBoy Color emulator for Android has been updated. Changes:
- Fixed Joystick Layout Editor to properly show labels and gravity.
- Added second player, if you have two gamepads connected.
- To play together, connect both gamepads before starting VGB.
- Added Material Design icons everywhere.
- Retouched virtual gamepad images.
News source: https://play.google.com