Talk:Names/@comment-26961151-20151125183653

Here's a warning if you DID confirm the name Frisk.

Confirming the name Frisk will activate Hard Mode. This will occur to make the game harder.

I have found this on Frisk's wiki page.
 * If the player chooses the name "Frisk" during the beginning of the game, they will be put into "Hard Mode" which only lasts the length of the demo, but uses significantly harder enemies (with some from the Core and some Hard Mode only Monsters), ending at the exit to the Ruins.