Treasure Chest game cheat
The Treasure Chest game (that opens at night in the Hyrule Castle Town Market) can be finished easily without luck of guess. Equip the Lens of Truth. You can use it to see inside the chests and look for which chests contain Rupees and which chests contain the keys needed to progress. In this way you can get to the Piece of Heart at the end without ever having to retry.
The only downside to this trick is that you have to wait until later on in the game to perform it.
Added by: Volke Dec 17th 2008, ID#6324