Originally Posted by
Flying Mullet
That's where the accessory, Diamond Armlet I think, comes into play. Each chest has a set chance of being a good item or a crappy item, for example 1% Zodiac Spear, 99% Hi-Potion. Wearing the Diamond Armlet gives you a 2% chance to find the Zodiac Spear when you open the chest. This is why it is so hard to get the Zodiac Spear through the chest in the Henne Mines, as you have one chest that has a near 0% chance of giving it to you. If you don't find it, you have to reset the chests and try again and again and again...