They've been trick-or-treating in Torrijos pala for the last ten years. Children dressed up as ghouls or ghosts parade in the streets joined in by their equally ecstatic mothers or titas.
It isn't clear whether they ask for sweets from house to house, but apparently members of the Marinduque Chamber of Commerce and Industry (MCCI), Torrijos Chapter chip in to treat the kids to gifts and refreshments.
I suppose the trick part of the practice is exclusive to those who are no longer kids but engage in juvenile mischief on the homeowners as they sing "kaluluwa'y nandirito, kaluluwa sa purgatoryo nanaog dito sa mundo...", while keeping hush the chicken in the bugako fated for pulutan.
I suppose, also, that the mischievous 'nangangaluluwa' folks have suspected long ago that purgatory never existed anyway.
"The term does not indicate a place, but a condition of existence. Those who, after death, exist in a state of purification, are already in the love of Christ..." (cf. Ecumenical Council of Florence, Decretum pro Graecis: DS 1304; Ecumenical Council of Trent, Decretum de iustificatione: DS 1580; Decretum de purgatorio: DS 1820).