Also known as: CORE!Frisk, corefrisk
Alternate Universe version of Frisk (Undertale) from Undertale where Frisk was thrown into the CORE in a pacifist timeline after performing too many RESETs, combined with a RESET attempt and powerful determination, this caused Frisk to become an out code and be able to observe and travel within the Undertale multiverse.
They were created by DokuDoki.