Sonic's Secrets: Castlevania Bloodlines.
On the options screen set BGM (Background Music) to 05 and SE (sound effects)
to 073 (see right), make sure that these music settings are still set when
you leave the options screen.
To activate expert mode, at the title screen (see right) press:
Up, Up, Down, Down, Left, Right, Left, Right, B, A.
You should hear a chime if the code was entered correctly.
A new difficulty setting (Expert) will now appear on the Options screen. (see right)
Enter the Original Music and Expert Mode codes in order. I
f you did it right you'll now be able to choose up to 9 lives from the options screen (see right).