It really depends on what you count as "beating the game." If you just want to beat all the gym leaders and the Elite Four, then you really only need to train a well balanced team. However, if you also want to fill out the pokedex you might need a little more time.
I have beat the game and have not found any trainers with a mawile.
You need to mate the Pokemon with a Ditto.
ponie
heartgold & soulsilver.
You first have to beat team rocket, then the Kimono girls
Do you have every Pokemon in the game? If not, NO!
he roams the map after you beat the game
Beat the game first and it will tell you what to do
After you beat the game, You can find a ticket in Kanto.
You have to battle blue. From there the game is technically done but you can get new starters such as Squirtle.
I have beat the game and have not found any trainers with a mawile.
If you beat heartgold, you can get kyogre in the embedded tower. You can also beat every gym in Kanto as well. if you do, you will unlock many features for the game. You can finally enter Cerulean cave and catch Mewtwo. There is a lot you can do throughout Kanto and Johto.
Beat Red
First he's in Mr. Pokemon's house Then he will be in the Olivine Port after you beat the game Then he will be in his lab at Pallet Town for the rest of the game
chikorita tododile and cyndaquil i ould choose cyndaqui thet is how i beat the game
arceus will beat him easily.
well you cant battle them again but in another Pokemon game you can and they are easy to beat and after you beat them you get like 6586 dollars cool huh?