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SVN r5808
SNES driver
Game : Momotarou Dentetsu Happy (J) with SPC7110 chip

Boot Procedure:
1. Press the A button when prompted.
2. Wait.
3. Press F3 when prompted to power off.
4. Press the B button when prompted.
5. Wait.
6. Press F3 when prompted to power off.
7. The game will boot.

If I press F3, no reaction.

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I'll let etabeta post the nice pictures of F1 ROC II.

If I start the emulation, MESS freeze (Initializing ...)