Ancients Awakened/Game Raider

Game Raider is a Hardmode launcher that has a chance to be dropped from Treasure Bags when opened in Hardmode. It shoots rockets in the shape of a mooshroom.

Trivia

 * The weapon's appearance and the mooshroom rockets are a reference to youtuber GameRaiders101, who plays Terraria regularly with his signature look being that of a mooshroom from Minecraft.
 * Mooshrooms also exist in Minecraft as passive mobs as well.