The Battle at the Last Corridor was the decisive battle that ended Frisk's Moral Experiments, which took place at the Last Corridor. The battle was started by Sans, with the intent to kill Frisk repeatedly and motivate him to reset, so that he could correct his sins. When Frisk was about to reset, Chara took over and fought Sans himself, nearly succeeding in eliminating him. To fix his mistakes, Frisk handed over his SOUL to Sans, which enabled him to easily kill Chara and reset the timeline. However, since he reseted in a moment he was not suppose to, this resulted in glitches across space and time.
Background[]
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Battle[]
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Aftermath[]
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