Its not possible to catch a level 100 pokemon.
catch an Abra and use your gameshark for rare candeys and then level it up! :)
You catch a Slakoth in Petalburg Woods then level it up to level 18.
It will be Level 40.
You can't catch mew on leafgreen you need gameshark codes for that
You cannot catch one in level 50 but you can use a gameshark to do it
Train wailmer to level 40.
You can catch some at Sky Pillar.
You cannot catch glalie to get one you must train snorunt to level 40.
if you cheat through Gameshark, though I'm not positive.
you can't you have to catch a tentacool then it evolves at level 30.
use a gameshark or action replay u lazy bumb!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Bagon evolves into Shelgon at level 30. Shelgon evolves into Salamence at level 50.