Super Mario RPG: Legend of the Magician's Sword/Two Legendary Coins

Legend Coins may be used to purchase variants of legendary skins and hyper upgrades for weapons, armors, ranged bows and magic, as well as used to unlock heroes themselves from the Store. They can be acquired by leveling up (600 for every level, even after max level).

Legend Coin: The Hawth Bowserth Coin
This money will help you upgrade your weapons in 20 levels, completely renew your armor and fully improve your infirmary. If this money is used in alchemists, 3 spells become the maximum level instantly. If the value of this money is extremely rare, every boss does not come out of this money. It only comes out when you kill Hawth Bowserth. Very rarely, <1% chance of occurrence of fire chests. The same in the legendary chests. Hawth Bowserth's money doesn't come from a money-making machine, but if it's a maximum-level machine, there's a bit of a possibility. This money is used only once. When used, 500 million is given and this money is lost. If you want to get this money again, you'll find the chests because Hawth Bowserth never came out after he died.

Legend Coin: The Ymir Coin
This money you health, defender, attack power and so on. gives great reinforcement. Heals all diseases (if used in the hospital), maximizes the shield. This money comes after you kill Ymir. It is extremely rare for this money to be released in ice boxes. Just as with Hawth Bowserth money, it's extremely rare, but there's a very little chance of a 5 percent chance of getting it out in legendary chests. If Ymir's money is used for alchemists, all ice magic is maximum. Ymir's money is used at one time. When used, 250 million is given and this money is lost. If you want to get this money again, you'll find the chests because Ymir never came out after he died.

The Hyper Coin
We've come to the rarest money, Hyper Money. Unlike Hawth Bowserth and Ymir money, this money is the rarest and best. Maximizes all weapons without spending money. In the same way, armors, spells and so on. like without spending money. This money comes out in Hardcore mode with a 50 percent chance after Hawth and Ymir die. This money also comes out of cosmic chests only. Of course, cosmic chests are extremely rare. Once you find this possibility you can see the figure as <2 percent. The value of this coin is equal to 1 billion gold coins.