in devil may cry 3 you will see that vergil has one of the sides of the amulet but in devil may cry four on the 18 level when you fight your brother he has one of the sides of the amulet if your confused by it don't be because at the end of devil may cry 3 vergil trys to kill mundus and he has a side of the amulet and when vergil trys to kill mundus he looses and falls under his control.The reason why devil may cry 3 ends with dante having a shop is because devil may cry 3 the end of it starts devil may cry 1 mind you mundus is really weak but trish is under his control i can't beleive that.
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