Trophy Description:3 die by the Miner's hand.
Bronze Trophy.

Once you reach the bottom of the mine, you will meet the aggressive Miner. He will throw a Bucket, Spade and Can of Creamed Corn down in front of you, followed by a constant stream of exploding dynamite. Gather all three characters together and just before he throws another stick of dynamite, move your characters next to where the dynamite will land. For this trophy to unlock, all three characters must die at the same time.

Remember to do this trophy before sending all three mine carts down to him, as by that point he wont throw dynamite anymore.