Advanced Parts are items that can be obtained from any ghost in the Backdoor, with the exception of Mini Bosses and ghosts from Bonus Biomes. Being the Backdoor equivalent of Antenna Parts, they are used to upgrade the antenna from levels 12 to 20. Players used to burn Advanced Parts at the Junkyard for 50 Ecto-Bits each, but now they convert into 6 Flames. They can be used for gum at a ratio of 50:1
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