At mt. ember in the font man facing backward then talk to him.
If you mean strongest TM, then it's Explosion (TM 64). It does 250 damage but it automatically makes your Pokemon faint.
In the slot games if you get a bonus game to last over 10 rounds without ending you can go to the counter and they will give you the TM. I found this easiest on platinum
The prize is the TM explosion........you can also find shiny cefairys.......
In the forbiden forest under your shoulder.
They are somewhere idiot find them yourself
Explosion is TM 64
This should help... TM 64 (Explosion) - Buy Ragecandybar at Mahogany, exchange with guy in underground path between Cerulean and Vermillion
If you mean strongest TM, then it's Explosion (TM 64). It does 250 damage but it automatically makes your Pokemon faint.
you cheat
In the slot games if you get a bonus game to last over 10 rounds without ending you can go to the counter and they will give you the TM. I found this easiest on platinum
Explosion is not a tm so cannot be found anywhere. However a variety of Pokemon learn Explosion naturally such as Koffing, Geodude and Voltorb.
The prize is the TM explosion........you can also find shiny cefairys.......
You have to buy it in the Battle Frontier Shop for 64 B.P.
You get the TM Explosion from Veilstone City Game Corner EDIT (by venom phoenix): more than that, you have to get 10 extra rounds in a bonus round. its based purely on luck.
you get it at the battle subway prize stand
TM 51 if your using heartgold or soulsilver, you can get it at the battle frontier for 64 battle points
you can give it to a in an underground tunnel in kanto and he will give you the TM for explosion