Metronome's Interaction with Choice Items

Bulbapedia has said since February 20, 2019 that "In Generation V, if Metronome calls a move the user knows and its user is holding a Choice Band, Choice Specs, or Choice Scarf, the move Metronome called will be locked by the Choice item. Otherwise, Metronome is the locked move."

On April 14, 2019, the following was added: "If a multi-turn move called by Metronome triggers Cursed Body, the multi-turn move will be disabled by Cursed Body, even if the user of Metronome does not know that move; otherwise, Metronome will be disabled."

For seven years, these claims have gone untested, and I've found that the first claim is entirely false!

I will test this in every generation where Choice items are available and Metronome can call moves known by the user. Particularly I am testing:

Whether Metronome is locked by a Choice item if it calls a move the user knows
Whether multi-turn moves called by Metronome fail on the second turn if a Choice item is held
Whether Cursed Body disables Metronome or the move Metronome called if the move activates Cursed Body on the second turn

Generation III

The Choice Band was introduced in Generation III, and in Generation III, Metronome is also able to call moves the user knows.

This was tested on "Pokemon LeafGreen Version (USA) (Rev-A)" running on mGBA 0.10.5 using my own save file, modified to give myself the Choice Band item and raise Clefable's level as well as alter its moveset.

If the Metronome user is holding a Choice Band, the move that gets locked is always Metronome, even if the move called by Metronome is known by the user.

Multiturn moves called by Metronome also don't fail on the second turn if the user is holding a Choice Band. (Metronome called Skull Bash in the video below)

Generation V

This was tested on "Pokemon - Black Version (USA, Europe) (NDSi Enhanced)" running on melonDS 1.1 using this save file. The summary of the Clefairy used is shown below.

If the Metronome user is holding a Choice Item, the move that gets locked is always Metronome, even if the move called by Metronome is known by the user.

The behavior of Cursed Body and multi-turn moves is accurate. (Note: Clefairy is still holding the Choice Band in the recordings below)

Generation VI

I have not tested these games yet

Generation VII

I have not tested these games yet

There should also be some interesting things with Z-Metronome that I will have fun investigating!

Pokémon Sword/Shield

This was tested on Pokémon Sword (Ver 1.3.2) (Running on Nintendo Switch 2). The summary of the Clefairy used is shown below:

Consistent with Generation V, if Metronome is used and calls a move known by the user, only Metronome will be locked by the Choice Item.

If Metronome selects a multi-turn move such as Fly, Dig, Sky Attack, etc. when the user is holding a Choice item, the move will fail on the second turn.

Cursed Body still behaves the same way. It disables Metronome rather than the move it called, unless if the move it called was a multi-turn move, in which case it disables the called move.

Pokémon Brilliant Diamond/Shining Pearl

I have not tested these games yet

Generation IX

This was tested on Pokémon Scarlet (Ver 4.0.0) (Running on Nintendo Switch 2).

Choice item behavior with Metronome is the same as in Generation VIII

Same for Cursed Body