In Generation 1, if a Pokemon had all types, which type would it be weak to?

Question

This answer is for the recent generations, but I'm looking for Gen 1, which was before Dark and Steel types were introduced.
Gen 1: ???
Gen 2-8: Rock [+Freeze Dry in later generations]

Thanks in advance!

Comments

2x weak to Rock- and 4x weak to Freeze-Dry, in all generations except 1.
https://pokemondb.net/pokebase/189697

Not sure about Gen 1 tho, so you might wanna change the question to just Gen 1 to prevent a dupe.

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I'm pretty sure it's 2x weak to Rock- post-Gen 1 (including 6-8).

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Ah cool. Didn't spot it. I'll rephrase this so it asks for Gen 1 specifically.

Answer 1

Immune to Normal, Electric, Fighting, Ground, and Ghost.

Resists Fire, Grass, Poison, and Bug.

Takes neutral damage from Water.

Weak to Ice, Flying, Psychic, Rock, and Dragon.

Source: The old gen type chart

Comments

cool, tysm!

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You're welcome!

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(1/8): Grass
(1/4): Poison
(1/2): Fire, Bug
     0: Normal(1/2), Electric(1/2), Fighting(1/2), Ground(4), Ghost(2)
     1: Water
     2: Flying, Psychic, Dragon
     4: Ice, Rock