What if Undertale was a NES game?

Undertale (sometimes spelled as UNDERTALE and formerly UnderTale) is a 1985 game for the Famicom/1987 game for the NES. It is centered around a child named Frisk, who has fallen into the Underground and must battle monsters to go back home.

Timeline

 * 1984 - Development begins on UnderTale, a series of 5 games for the Famicom/NES.
 * October 13, 1985 - All UnderTale titles are launched for the Famicom as a single game.
 * January 24, 1987 - All UnderTale titles are launched for the Nintendo Entertainment System as the "Undertale Game Bundle".
 * September 8, 1993 - DeltaRune is launched in Japan and the United States for the SNES.
 * November 13, 1993 - Deltarune: The Final Mission, the second Deltarune game, is launched for the N64.
 * December 31, 2000 - Undertale: Back From The Dead, a sequel to UnderTale which takes place 10 years later, is launched for the Gamecube.
 * January 24, 2007 - Undertale: Heartbroken, a 3D version of the original UnderTale games, is released for the Wii.
 * 2008 - the 5 UnderTale games and the Deltarune games are made available on Virtual Console in the Wii.
 * 2011 - Development begins on the (coincidentally) seventh installment in the Undertale series, Seven Human Souls, where you control one of the other seven humans who have fallen into the underground instead of Frisk.
 * April 1, 2012 - Undertale: Seven Human Souls is released for the Wii U and 3DS.
 * 2018 - Seven Human Souls is re-released on the Nintendo Switch and all other Undertale games are made available on Nintendo Switch Online.
 * 2021 - Development begins on Undertale: Legacy, which takes place 30 years after the original UnderTale, and Undertale Collection, with all the 4 Undertale games (the 5 NES Undertale games are combined into a single one) and both DeltaRune games.
 * October 13, 2025 - Undertale: Legacy is released for the Future Boy, on Undertale's actual 40th anniversary.
 * October 14, 2025 - UnderTale Collection is released.

Plot
TBA