Psyduck (Water), The name of the Pokémon learn psychic moves but, isn't psychic type just like its name? Fun fact: There were plans to make a Pokémon let's go psyduck, but it was replaced by Eevee.
Blissey (Normal) When I think of pink Pokémon from generation one or two they're mostly fairy type, but for blissey that's not the case, even though the Pokémon design has wings in it like a fairy type.
Litleo (Fire/Normal) I'm confused on why is also a normal type, maybe it looks like a normal lion but it somehow knows fire type moves
Audino (Normal) Same like Blissey
Vibrava/Flygon (Dragon/Ground) Either add a third type like bug or replace dragon with bug
If there's any I missed put it in the replies. I'm not a Pokémon expert so there might be mistakes in it.