after many genocide routes,sans found something unusual,something that never exist for a while,sans scratch his head in confuse,he opens the door and sees a figure...a figure that has been forgotten long time ago...the figure explains everything...the slaughter,the suffering...the pain that sans got into and just reset to forget everything...sans got frustrated...the figure offers an deal...he help him defeat the human and end the madness...as Sans looks at the figure...he accepts the deal...

You Have Arrived to the Judgement Corridor

You see sans in the hall,with the unknown figure behind him...it dissapeared suddenly...

L.B Sans:...let's just get to the point

(Also,the unknown figure names Gaster for those who don't know)

You feel like someone is with sans,you ask sans if someone is with him

L.B Sans:heh,you mean,HIM?

You don't understand who's his talking about HIM...

You were confused,but you ignore about it and battles sans,you beated him in phase 1 and phase 2,thinking you will win,but suddenly,your dmg become 0,sans is still standing there...you can see the unknown figure behind him...

Gaster:ah,just in time to make it here,you think he's now done?heh...YOU MAKE A HUGE MISTAKE...