How do you turn jack into the pumpkin king in oogie's revenge?

In "Oogie's Revenge," to turn Jack Skellington into the Pumpkin King, you need to collect special items and complete various tasks throughout Halloween Town. This involves defeating Oogie Boogie’s henchmen and solving puzzles to gather the necessary items that restore Jack's powers. Once you've amassed enough items and completed the required challenges, you can unlock Jack's ultimate transformation, allowing him to fully embrace his role as the Pumpkin King.