In Pokemon leaf green and Pokemon Fire red it's VERY SIMPLE! All you have to do is go to the Seavault Cannon or go to the hardest place to find them, POKEMON TOWER!
The answer above is correct but it's really not that simple, if you just started and you want a Cubone but can't find one in Lavender Town so decied on the Seavault Canyon your going to have to wait quite a while for it because you have to beat the elite 4 before you can go to the Further Islands such as 4-7.
cant you have to find cubone in the safari zone (i forgot where he/she is) but you can evolve cubone into marowak
You have to trade a Cubone from Leaf Green or Fire Red.
you can buy a cubone in the shop when you get enough money in the gambling place
pokeflute
Seven island.
cubone have it
Cubone can be found in the Pokemon Tower (aka Lavender Tower) in Lavender Town. There is a 5%-14% of finding a cubone depending on which floor you are on. 24 is the highest level that you will find them. In the Japanese version of Pokemon blue, cubone can only be obtained through trading.
you go to the marsh area
You find in the ghost building.(sorry im not specific.)
No, Cubone is not a baby Kangaskhan. A Cubone has no relation to Kangaskhan.
route 203 (mass outbreak).
In Johto you can find it in the Safari zone and in Kanto you can find it in Rock tunnel.