Name all the Pokemon in Generation I that DO NOT have a variation, regional variation, convergent species (including Paradox), mega evolution, Gigantamax, split evolution, added evolution in a later generation, etc.
Added evolutions only include the pokemon evolved from or evolved to, not the whole line. i.e. Dusclops would not be forgotten because it can evolve into Dusknoir in a later generation. Duskull would be forgotten as it has no new direct evolution.
Regional variants do not count as split evolutions
Blog with explanations - https://www.jetpunk.com/users/kidibu/blog/forgotten-not-pokemon-explanations
tentacool, tentacruel were forgotten even by this quiz, toadscool and toadscruel are not regional varients just because they have similar designs and names (ex: Mr Rime evolves from galarian mr mime but toadscruel does not evolve from tentacool)
ditto should not count since it got its own ability later (I know the rules don't specify exclusive abilities being added later but in my mind ditto wasn't forgotten for this reason)
Mew has an exclusive Z move so it shouldn't count for similar reasoning to ditto
ditto should not count since it got its own ability later (I know the rules don't specify exclusive abilities being added later but in my mind ditto wasn't forgotten for this reason)
Mew has an exclusive Z move so it shouldn't count for similar reasoning to ditto