The mithril runs out after 5 ores are mined. And once they're mined, he runs to the middle of the coals and runs back and forth until another mith ore spawns. Doesn't hop when the option is enabled. And awesome!
Update - Also, the "hide paint" option doesn't work. It doesn't get rid of the paint actually. If you could, you should consider making the paint a little smaller lol. It's kind of insanely large, or make a smaller option. One that just shows the ores. Just opinions, not demands.
Update 2 - OH and could you make a Free 2 play free world hopping? That would be swell. Thanks!