I mean Universe Mission Goku has resistance to
Evil Aura, which has
Extreme Corruption hax, in his SSB Berserk form he can use
Evil Aura.
Evil Aura users have resistance to their abilities.
Big Bang Mission Goku has all those resistances and has resistance to
Universe Tree. the same Universe Tree has
Dark Factor. Dark Factor has
Corruption manip. and in the same key, he can again use Enhanced Aura via the same
SSB Berserk form
He should have like 4 layered corruption resistance (1, 2 from base UM resistance to Evil Aura and SSB Berserk, 3 from Universe Tree (by extension, Dark Factor) resistance, and 4 from when he used stronger SSB Berserk form later in Big Bang Mission). Corruption should not be a problem