Originally Posted by
T51R
I'm going with board rules, which means feats. There's a lot we can extrapolate from Saitama's showings.
And while quite powerful, I'd reckon he isn't quite top-shelf stuff. i.e. he isn't as quick as say, Karas. He isn't as strong as Asura.
Definitely vulnerable to Hokuto Shin Ken and some of the more esoteric Shadow Skills, by feats or lack thereof.
Psi abilities should effect him since he doesn't have any showings against them to date(i.e. Xavier, Legion, et al.)
No resistance to transmutation, can't hit intangible objects, has to hold his breath in space and so can't fight there for prolonged periods.
He definitely isn't handling top-shelf stuff like a LHW or Ragna Blade through the chest, a Giga Slave cast at his general vicinity, insta-kill magic like ADKV, Divine powers like Ah Gou's Monochrome(which seals or limits the opponent's best attack or ability...) OR, high-end tech like being stored in a transporter buffer, Phantom Zone-dumped, time-stopped, infected with nanites or nanoprobes, shot with a Black Hole Gun, or getting either magically frozen(Elsa) OR, getting AOE-frozen(Mechagodzilla III's or the Gotengo's Absolute Zero cannon)
And then there's opponents who adapt to him. Case in point, Kazuma the Treasoner and his hax Word of Evolution. Or The Borg. Or Doomsday.
He isn't taking on beings like Q, who is for all intents and purposes what earlier humanity would call "God," but in the year 2364 is considered "just another life form, albeit an extremely powerful, and dangerous one."
And if Q is bad, then true Creators like the three Chousin(Tenchi Muyo) and Chakravartin would, literally, send him to Hell via dimension dump.