Okay kid, im quit messing around, lets talk compare Ness and Sans stats :
Sans :
Atk 1
Hp 1
skill : die
Ness :
Atk : 500
Hp : 2000+
PP : 800+
Skill :
PSI Rockin Ω
PSI Shield Ω
PSI Teleport β
PSI Lifeup Ω
Sans probably can just dodge ness regular attack ( bash ). But Sans will tired immediately, since Ness speed is over the god himself. Ness can use PSI Rockin Ω which is dealing 300 damage per hit, and you CANNOT AVOID IT, PSI Rockin Ω is dealing damage to every Ness opponent in the battlefield, and no one cannot dodge it, even god.
And Ness can use PSI Shield Ω, which is last forever, except Sans has a gadget called " Shield Killer " which is sans dont have, Shield killer is an exclusive item in Earthbound.
Ness also has PSI Teleport, which is work like sans teleport. But cost less mana.
And lastly, Ness has PSI Lifeup Ω, which is will heal Ness back to perfect 2000+ HP.
And even Sans cannot handle a tiny baby dora with toy knife which is only has 90 HP!
And Sans will DIE at the first hit to Ness PSI Rockin Ω. Once again, PSI Rockin Ω is Unavoidable, no one can dodge it, even god, sans is just a stupid brainless sloth if you want to compare Sans to Ness.
I bet you NEVER played Earthbound or Undertale, I played BOTH Games, and I have proof for it in my youtube channel.
So, if you want to make your stupid opinion as a fact, while you haven't played Undertale or Earthbound.