Enter one of the following codes during game play to change the
background to match the corresponding Game Boy case colors. You
must be using a Super Game Boy
Hold Start Green
Hold Right + Start Red
Hold Up + Start Black
Hold Down + Start White
Hold Left + Start Yellow
To change to the transparent Game Boy, sweep the D-pad continually in a
Full-Circle until a tone is heard. Hold the D-pad in that direction and
press Start.
