Pokemon Fushigi no Dungeon: Yami no Tankentai
This game is titled Pokemon Mystery Dungeon: Explorers Of Darkness in North America, Europe, and Australia, and Pokemon Fushigi no Dungeon: Yami no Tankentai in Japan.
Easy money and items
You need a Trawl Orb for this trick. Once in awhile, you will find a Kecleon shop in a dungeon. When you drop an item on his carpet and step off, he will give you money for that item. Drop whatever you can on the mat, except the Trawl Orb, and leave. You will get money for it. Locate the room with the stairs and use the Trawl Orb. All unclaimed items on the floor will be transported to that room, including Kecleon's items and the items you dropped. Quickly pick them up and enter the next floor. Note: Kecleon will either call all the Pokemon on that floor after your characters or summon other Kecleon's to fight you. Do not fight them. They had a good chance at a one hit kill. Hence, use the orb in the same room as the stairs.
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Free Reviver Seeds at the Guild
After you graduate, go into the Wigglytuff Guild bottom floor. Talk to Loudred. He will say "Oh! HEY, you two! Came to visit us, did you? ...WHAT? You want to earn some money pulling sentry duty?". You will get the choice of "Yes", "No", or "Check High Score". Select "Yes" and get all of them correct. You can still have your partner say "Huh? I don't think so, try again" but get 6 out of 6 and 300 or 400 PokeDollars, a Def. Scarf, Reviver Seed, and Heal Seed. When done, your partner brings you back to the Sharpedo Bluff and you will sleep. Do this correctly repeatedly and you will get a Reviver Seed every time. Note: If you have a friend or another Nintendo DS with Pokemon Diamond or Pearl, go to the four possible choices' PokeDex Entries. If you have it, the footprint should be there. If you do not have it, you will be in a tough place.
Strategy guides from GameFAQs