Super Effective Against Psychic Gen 1
Ghost type moves had no effect on psychic pokémon.
Super effective against psychic gen 1. Several game guides stated that ghost was super effective on psychic and an in game trainer at saffron city says that psychic pokémon fear only ghosts and bugs. This chart shows the strength of the psychic type against every type combination. In generation i there was no way to do super effective dragon type damage since the then only dragon type attack dragon rage always deals 40 hp of damage.
Also for the same reason there was no way to get stab from a dragon type move in generation i. In gen 1 the only ghost type was part poison and there were no good bug moves making psychic extremely overpowered and dark a necessary opposing force. In particular its resistance to psychic cut down that type s advantage by a long way.
As a result the issue was rectified in generation ii with the addition of steel and dark types an added weakness to ghost type moves as opposed to previously being immune to them as well as some moves that are strong against psychic types. In the generation i games psychic type pokémon were at the center of a balance issue. Multiple sources mention that ghost type moves are super effective on psychic type pokémon.
There were no dark or steel types. As such this was the only case when two different types were ever super effective against each other. Note that this only affected lick as confuse ray and night shade affected all pokémon equally this was supposedly a mistake in the programming.
Official strategy guides published by nintendo two episodes of the anime the tower of terror and haunter versus kadabra and even the games themselves where a trainer in the saffron gym mentions that psychic type pokémon only fear bugs and ghosts though the reference to ghost type pokémon was removed in pokémon yellow. Psychic pokémon stat averages 73 6. The bug type was the most common 4 weakness in generation i with 11 pokémon doubly weak to it mainly due to poison type having a weakness to it at the time.
The fraction of damage a psychic type move will deal is shown means 50 damage not very effective 2 means 200 super effective and so on. Level 2 47 points 7 years ago.