Note: This game is also titled Genso Suikoden.
Place items, such as medicine, in the vault after they only have one charge remaining. Then when the items are withdrawn, they will be fully charged.
Go to Rockland and talk to Marc. Bet 100 and check where the coin is located. Repeat this a few times and note the order of where the coin is placed each time. Quit the game, then talk to Marc again and bet 10,000. The coin will appear in the same order as it was the first time through. Repeat this procedure to build your wealth. The coin will always be in the same place as long as you only bet once per visit, or leave town.
Go to Rockland, talk to the old lady that runs the cup and coin game, and bet 100. Then, pick any cup. If you lose, quit the game, then talk to her again. Bet 10,000 and pick the cup that hid the coin in the previous game. You will win the game. Quit, talk to the woman again, bet another 10,000, and pick the same cup. Repeat this procedure to build your wealth. The coin will always be in the same cup as long as you only bet once per visit, or leave town.