Level select: Plug one controller into the Sega Master System and
place it in port two. Hold Left + 1 + 2 before
the Sega logo disappears. Wait until Sonic finishes running across
the screen, then unplug the controller and place it in port one.
Press 2, 2 to display the level select screen.
Information in this section was contributed by thematrixeatsyou.
