Early undyne files built into Undertale program code Hold 'Quack' early 'voice lines'
Quack, also known as Papyrus's friend or more formally, Undyne's obscure relative, the 'quack' you here refers to 'Quack' a obscure 'fish' like character related to Papyrus. quack prep undertale
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Are you Interested more information Undertale game lore Papyrus character background information. Early undyne files built into Undertale program code
These files & codes left within game preperation build & insight into creative preperation. Undyne's obscure relative
Within Undertale Lore 'Quack' might simply relate or be inspiration to early preperation that built 'Papyrus ' character