The ranges shown on the right are for a level 100 Pokémon. Maximum values are based on a beneficial nature, 252 EVs, 31 IVs; minimum values are based on a hindering nature, 0 EVs, 0 IVs.
In Generations 2-4, Cyndaquil has a base experience yield of 65.
In Generations 2-7, Cyndaquil has a base Friendship value of 70.
Pokédex entries
Gold
It is timid, and always curls itself up in a ball. If attacked, it flares up its back for protection.
Silver
It usually stays hunched over. If it is angry or surprised, it shoots flames out of its back.
Crystal
The fire that spouts from its back burns hottest when it is angry. The flaring flames intimidate foes.
Ruby Sapphire
CYNDAQUIL protects itself by flaring up the flames on its back. The flames are vigorous if the POKéMON is angry. However, if it is tired, the flames splutter fitfully with incomplete combustion.
FireRed
It usually stays hunched over. If it is angry or surprised, it shoots flames out of its back.
LeafGreen
It is timid and always curls itself up in a ball. If attacked, it flares up its back for protection.
Emerald
It flares flames from its back to protect itself. The fire burns vigorously if the POKéMON is angry. When it is tired, it sputters with incomplete combustion.
Diamond Pearl Platinum
It has a timid nature. If it is startled, the flames on its back burn more vigorously.
HeartGold
It is timid, and always curls itself up in a ball. If attacked, it flares up its back for protection.
SoulSilver
It usually stays hunched over. If it is angry or surprised, it shoots flames out of its back.
Black White Black 2 White 2
It has a timid nature. If it is startled, the flames on its back burn more vigorously.
X
It is timid and always curls itself up in a ball. If attacked, it flares up its back for protection.
Y
It has a timid nature. If it is startled, the flames on its back burn more vigorously.
Omega Ruby Alpha Sapphire
Cyndaquil protects itself by flaring up the flames on its back. The flames are vigorous if the Pokémon is angry. However, if it is tired, the flames splutter fitfully with incomplete combustion.
Brilliant Diamond Shining Pearl
It has a timid nature. If it is startled, the flames on its back burn more vigorously.
Legends: Arceus
Hails from the Johto region. Though usually curled into a ball due to its timid disposition, it harbors tremendous firepower.
Cyndaquil learns the following moves via breeding or picnics in Pokémon Scarlet & Violet. Details and compatible parents can be found on the Cyndaquil gen 9 learnset page.