To get a cyndaquil u must trade one from Pokemon emerald or Pokemon xd gale of darkness or breed the purified quilava from Pokemon colosseum
catch 80 Pokemon
Cyndaquil is #155 in the national pokedex, and it is a Fire type Pokemon.
After you fill your whole dex and beat the E4.
You need to complete the kanto pokedex, after this Prof. Oak give you one of this pokemon's: Chikorita, Totodile (evolves into croconaw) or Cyndaquil.
if u want a cyndaquil u have to migrate it from a diffrent region
In emerald if you complete the pokedex you can get Chikorita, Cyndaquil and Totodoile from prof birch.
Answering "Can you just catch 200 Pokemon on your national pokedex to get chikorita cyndaquil or totodile?" Hell no!
look in your pokedex
Chikorita, Totodile, Cyndaquil.
what you do is complete your sinnoh pokedex get the national dex then talk to dawns little sister and eventualy she will tell you where a cyndaquil is. hope i helped
you need to battle somone what have it!
Firered and leafgreen both can catch different Pokemon but there pokedex is the same, here is some examples: magmar only in leafgreen not firered, oddish in firered not leafgreen, ekans in firered not leafgreen, bellsprout in leafgreen not firered, pinsir in leafgreen not firered.