Go to Fort Condor after getting in the water with Mr. Dolphin, before jumping onto the Voltage Tower. Now, start the mini-game in which you defend the fort. Play it and beat it. Make sure that the army kills the commander, not you and your characters. At the end of the mini-game, you should get an item called a "tincture". This is a mistranslation. It is an ether, and a tincture doesn't even exist in the game.
Submitted by: Thor