Things You'll Need
Instructions
Remove the plastic cover for the GBA slot. Insert the "Pokemon Emerald" cartridge in the cover's place. Switch on the Nintendo hand-held. If you don't see "Pokemon Emerald" on the main menu, remove the GBA cartridge and reinsert it into the Nintendo DS or Nintendo DS Lite.
Select "Pokemon Pearl Version Nintendo" on the main menu of your hand-held. Skip to the start menu of the DS game. Select your save file with the "A" button. Fly to one of the following locations: Eterna City, Hearthrome City, Pastoria City or the Pokemon League. Shop for Net Balls at the local PokeMart.
Look for Pineco in the grass patches of Eterna Forest, Route 203, Route 204 or Route 229. About eight out of 100 Pokemon will be Pineco in these locations. The Pineco will range from Level 5 to Level 20.
Fight the Pineco until it has less than one fifth of its hitpoints remaining. Chuck your inventory of Net Balls at the Pineco until you capture it. If you have no other use for the Net Balls, sell them at any PokeMart for 500 PokeDollars.