It can't be triggered without having Romani's Mask at all, it's an alternate reward for Link succeeding. ( The others are 100 and 200 Rupees I think )

PAL? what's that? ( I checked, the back of my copy has Nintendo of Canada's address on it so I'd assume it's North America region-wise )

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" I am the Hero of Time. No matter when, no matter where... for the sake of Hyrule and you, Princess Zelda...
I shall fight." - Link ( OoT manga )

Articles/Theories:
The Case for Kingship ~ Light and Shadow: The Tale of Two Princesses
Majora's Mask: Parallels in Love