Emperor Fossil (エンペラーフォッスル) is a variant of King Fossil who, alongside Queen Fossil serves as the boss of zones B and C in Darius Twin.


Emperor Fossil fights in tandem with Queen Fossil, as they both move up and down in opposite directions while firing their mouth lasers. While Queen Fossil fires a slow three laser spread, Emperor Fossil fires a fast, large straight laser. Once one of them is destroyed the remaining Fossil will start moving faster and fire its lasers at an increased rate.


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