if u go on the rock thingy that u stand on to go to the gim [Marlene's] go left from the first building [the building all the way to the left] go in and talk to the clown he will ask which hand has the thing. if u want a coin case the right answer is right [right hand side].
it is Tentacruel
It is in Victory Road after you've seen the three boulders
u could find it in a house in celedon city
get a harbor mail. Then go to mauvile city,and then find a house left of the pokemart then she will trade you a coin case..by: kordell
Go to celadon city and find the cafeteria its one of the houses on the bottom talk to the guy at the top left and he will give you his coin case.
Go to Dewford and get Harbour Mail. Then go to the house next to Game Corner and she will tradeb you the mail for a coin case
The coin case is given by a girl who nees harbor mail in mauvile city she lives in a house near the pokemart if you give her the harbor mail you will get a coin case you can get the mail in slateport city's pokemart or the market outside.
There wil be a man giving them away on top of a mountain where you catch mewtwo
you can't catch groudon in platinum unless you have action replay. You can transfer it from emerald and/or ruby through pal park
You get a coin case In the big city with a Pokemon casino. Just keep looking until you find a diner. At one of the tables will be an old man talk to him and he will say he hAs a gambling problem and he'll give you a coin case for free. Thats all
IN THE TOWN THAT THERES THE COIN GAMES
If you don't pick piplup or turtwig when the game first starts, you can greatly increase your chances of having a fire type.