Here we have the Sega Master System game "Aladdin" running in Amiga (WinUAE) with the emulator AmiMasterGear. This emu is wonderful, with a clean GUI and high compatability. The speeds are superb! It did not feel as if there were TWO emulators at work here!
Download AmiMasterGear here.
I am sorry, but for some reason I could not show the WinUAE emulator itself, but trust me, the screenshot is of the latest WinUAE release (0.91)!