Barrel Baron

Barrel Baron was a mini-game in the Extra Room of Mario Party 4. In this mini-game, the character you chose is in a hot desert with oil teeming under the grounds. Your job is to find where oil geysers are hidden, and dig there. You have your character walk around, until you feel a rumble. The bigger the rumble, the more oil you get! You then chisel away the ground with a pickaxe 3 times, and the geyser will come out. Keep doing that for the rest of the game to earn more points!