Why will it not let me fight sans?

[SwordShattered]

i have killed every boss and have never spared an enemy. it just says think about what you have done and then if you press yes it says why did you kill my brother and lets you go to asgore. please help i have beat the game 4 times trying to do this.

[Grim Will-Power]

you dont just fight all the enemys, you have to LOOK for them, move around to fight the enemys, when there are no more enemys in an area, it will say but nobody came (20 before toriel, 16 in snowdin before papyrus, 18 in water fall before undyne the undying, and 40 in hotland/core before mtt neo)

[Bryce08]

Originally posted by SwordShattered:

i have killed every boss and have never spared an enemy. it just says think about what you have done and then if you press yes it says why did you kill my brother and lets you go to asgore. please help i have beat the game 4 times trying to do this.

Warning spoilers ahead!!!

You're doing a neutral route because you killed everything you encountered. For genocide you have to kill every encounter in that area until it says but nobody came. The music should also change and the save points should say how many more monsters you have remaining in that area. By the time you reach the Judgement Hall then Sans will start his fight.

[SwordShattered]

thanks

[𝕊𝕠𝕡𝕙𝕚𝕒]

Lmao

[StaticSkull]

Basically how a genocide run works is that you have to kill absolutely everyone, not just the enemies you encounter. I made this mistake when i first started playing Undertale. In every biome choose one room and just walk around until you come across an enemy, kill it and continue doing this until you do not hear the normal background music, you hear a desolate washing-machine like sound, in the ruins you will not get this but any other save point you use it will give you the number of kills left before you'll hear that sound, the background music as well in all biomes except from the ruins will sound sad and depressing that how you know your still on the Genocide run and when you kill everyone you will get the desolate sound again. Oh and one more thing you will regularly get a reaction into a battle but no enemies are there you get a small message saying "but nobody came". Make sure you've killed everyone then you'll get to fight sans...my only advice for him is to GIT GUD!!!!