In the web comic Orochi didn't exist, so this combined version of Psykos and Orochi didn't exist, either. In the web comic Tatsumaki got injured by a sneak attack from Psykos, which felt a bit contrived, so I think they added Orochi and this whole sequence to give a better reason for how Tatsumaki gets injured during the fight.
Damn Saitama final form ?! isn't too early for such thing to happen?
ALSO DAMN Tatsumaki always form is super fucking cool!
Tsunami? pffft that was never a problem! ---------------............................... nah but let's get serious doods, Tatsumaki has sustained a considerable amount of damage and blood lost already so heroes, FUCKING GET TO WORK! there are others monsters out there and she has her hands full already (And full of blood too).
@abconline you won't find it, Orochi doesn't show up in the original comic so this fight never happened, everything has changed too much already.