Ducktales-remastered -

: A new playable tutorial level and a hub where Scrooge can literally swim in his accumulated treasure.

: A toggleable feature that allows for a "Hard Pogo" (manual button press) like the original or a simplified "Easy Pogo" for newer players. ducktales-remastered

: Including an "Easy" mode with a map screen and an "Extreme" mode for veterans. : A new playable tutorial level and a

: The inclusion of the original 1980s TV show cast, including Alan Young as Scrooge McDuck. ducktales-remastered

Since is a massive overhaul of the classic NES game, the "feature" you're looking for could refer to several different updates or mechanics.