Terraria 1.4 - Celebration Mk2 vs ALL Bosses (Master Mode)
Celebration Mk2 is the strongest rocket launcher in Terraria: Journey's End and i defeated ALL bosses (including new bosses) and Old One's Army in Master Mode with this strongest ranged weapon. In this video you can also find out how to spawn Empress of Light and Queen Slime and how to get Celebration Mk2.