There are actually NO LEVELS in any Pokemon games. Its just the matter of getting to all the cities and beating the gym leaders and finally the POKEMON LEAGUE and the Champion!
lv.40-50.
He's in Ice Path, at levels 21-24
Feebas does not evolve by level in Pokemon HeartGold. Feebas evolves when it levels up while it has a maximized beauty condition.
Her Clefairy is level 17 and her Milktank is level 19.
It levels up at level 18 , then level 30.
In Pokémon HeartGold, you can find Jigglypuff in the Safari Zone at Levels between 15-17 in the Meadow and Swamp areas additionally you can find it in Routes 3 and 4.
You can get the friendship checker in HeartGold at Goldenrod City. Talk to the happiness rater and she will say a phrase that indicates your Pokémon's happiness. This determines your friendship levels.
I forgot the levels but here are the Pokemon Pikachu Blastoise Snorlax Lapras Charizard Venusaur
493
Red's Pokemon levels are his level 88 Pikachu, and the rest of his Pokemon are at level 84.
Pidgey evolves at Level 18 into Pidgeotto, and then levels again at Level 36 into Pigeot.
28