They are found on the 29th floor in Lightning Field.
Get A Thunder Stone! And Then Go Evolve it!
In Pokémon Mystery Dungeon: Gates to Infinity, the code for the Thunder Stone is "P3S6S7L3". You can enter this code at the appropriate location to obtain the Thunder Stone, which is used to evolve certain Electric-type Pokémon. Make sure to input the code correctly to receive the item.
I think you need a thunder stone to evolve pikachu hope this helps you
You can find one in blue rescue team by going to Lightning Field then go to the place to evolve with the stone.
You can get thunder stones in Lightning Field Dungeon. They're usually on the 29th floor which is the second to last floor. The last floor is the the 30th floor which is empty after you beat Riakou.
You use it to get to Jirachi.
that's dumb
lets see after you stop the asteroid flarion fire stone joltion thunder stone vaporion water stone and that's it
you cant srry.
of course you can you can get every item in the game from rescue jobs
In blue or red, it's in fiery field.
you can't.its impossible.EDIT: Wrong. You can find a leaf stone as a random prize in paradise or in the DLC dungeon "Skill Treasury"