Snorlax does not evolve. In gold, it is a non-evolutionary pokemon.
Girafarig does not evolve in Pokémon Gold.
Wooper will evolve at Level 20.
You have to have it have high happiness. It doesn't evolve at a level.
Farfetch'd is a Pokemon that does not evolve.
It evolves at level 16.
Snorlax can be found east of Vermillion by the Diglett cave. You will need a Pokemon Flute. It is level 50, so you will need some strong Pokemon to weaken it.
hitmonchan cant evolve
Farfetch'd does not evolve in Pokemon HeartGold. Sorry! :)
Gyrados does not evolve. It is already a fully evolved Pokemon.
Flaafy will evolve into Ampharos when it reaches level 30
Wurmple with evolve at level 7 into a Silcoon or a Cascoon.
Meditite evolves into medicham in Pokemon heart gold/soul silver at level 45
it doesn't have a level it depends on the friendship level
level it up to level 36
26 in all Pokemon games.