Nothing but zubat.
You can find ditto in cerulean cave.
Just keep running around and you will eventually find one. It does take a while for Pokemon to appear in the lost cave. Murkrow is RARE in the lost cave so you won't find it easily. It can only be caught in the Firered lost cave and Misdreavus can only be caught in the Leafgreen Lost cave. You cannot get Misdreavus anywhere in Firered. It is absolutely exclusive to Leafgreen.
to get it u need to have charizard.to get suicune use max repel and if a Pokemon appears its suicune!
you have to have beaten the elite four and you have to find the ruby and sapphire for the machine in the Pokemon center on one island. then you can enter cerulean cave and get mewtwo
Answer:Here's A Secret: thery're a secret(; You could use the itemfinder where you find zapdos and get a thunderstone. also you find mewtwo in cerulean cave.
You can find Murkrow in the Lost Cave in Pokémon FireRed.
You can find ditto in cerulean cave.
You can find Mewtwo in the Cerulean Cave.
you can find it in 4 island in icefall cave.
You cannot find Piloswine in the wild on Pokemon FireRed. You can find it's pre-evolved form Swinub in Icefall Cave on Floe Island in the Sevii Islands of Pokemon FireRed.
on Island #4 in icefall cave icefall cave
Four Island, Icefall Cave.
you find it deap in cerluean cave
You can find Swinub in Pokémon FireRed in the Basement and on the 1st floor of the Icefall Cave.
You can find it at Icefall Cave at Four Island.
You can find pretty strong ones in cerulean cave.
you can find it in the viapois cave of the tanoby ruins