TM09 is an item known as a Technical Machine (TM) in the Pokémon series, which allows Pokémon to learn specific moves. Over the generations, the move taught by TM09 has varied:
Generation I (Red/Blue/Yellow): TM09 teaches the move "Take Down." Take Down is a Normal-type move with 90 base power and 85% accuracy. It has a recoil effect, causing the user to take damage equal to 1/4 of the damage dealt to the target.
Generation II (Gold/Silver/Crystal): TM09 changes to teach "Psych Up." Psych Up is a Normal-type status move that copies the target's stat changes onto the user. This can be strategically useful for neutralizing the opponent's buffs or boosting the user's stats without setting up.
**Generations III–V (Ruby/Sapphire/Emerald, FireRed/LeafGreen, Diamond/Pearl/Platinum, Heart
Teaches Bullet Seed to a compatible Pokémon.
Short Effect: Teaches Venoshock to a compatible Pokémon. (Gen IV & III: Bullet Seed Gen II: Psych Up Gen I: Take Down)
Teaches Bullet Seed to a compatible Pokémon.
| Generation | Game Index |
|---|---|
| Generation III | 297 |
| Generation IV | 336 |
| Generation V | 336 |
| Generation VI | 336 |
| Generation VII | 336 |
| Generation VIII | 336 |