You can't it's IMPOSSIBLE
To be a Chimchar in Pokemon Mystery Dungeon: Explorers of Darkness, you need to choose Chimchar as your starter Pokemon at the beginning of the game. Chimchar is one of the options available when you start the game, so simply select Chimchar to play as that Pokemon throughout your adventure.
In Pokemon Mystery Dungeon: Explorers of Darkness, you cannot choose Chimchar as a starter Pokemon at the beginning of the game. However, you can find Chimchar later in the game and recruit it to join your team through various dungeon exploration missions. Keep exploring dungeons and recruit Chimchar when you encounter it as a wild Pokemon.
wodit be better to swap chimchar for mudkip
In Pokemon Mystery Dungeon: Explorers of Darkness, Chimchar can be chosen as a starter Pokemon at the beginning of the game. During the personality test, selecting answers that match a "lively" or "enthusiastic" personality may increase your chances of getting Chimchar as your starter Pokemon.
if your chimchar just keep using flame wheel
Turtwig (grass) Chimchar (fire) Piplup (water)
You get a Chimchar if you want it as your 1st Pokemon
Chimchar is on of the starter Pokemon in diamond. As far as I know, you can't catch a chimchar in the game, but if you want one and didn't choose chimchar as a stater Pokemon, you could trade with someone for a chimchar of WFC.
Chimchar evolves twice in Pokemon Diamond Version. From Chimchar to Monferno to Infernape.
you cant see a chimchar in Pokemon diamond so you are saying that no trainer in the game has a chimchar
You must breed a Monferno or Infernape with a Pokemon to get the chimchar egg.
A Ditto and a Chimchar OR A male and Female Chimchar