Progress Coin

Progress Coins are items used to proceed within Immortallis.

Overview
There are four variants of Progress Coins, each numbered according to the order they are meant to be obtained. All of them are named "Progress Coin."

Mob drops
Progress Coins are guaranteed drops from the Immortals. Each Immortal drops a different Progress Coin.

Immortallis Progressor
Progress Coins are used solely to leave the rooms of the Immortals once they are defeated. Using the Immortallis Progressor in a boss's room with the respective coin in the inventory will teleport the player to the next room, consuming the coin.

Trivia

 * The Starting Coin has an ID of, which implies that it is actually the first of the Progress Coins. However, it does not share the Progress Coin name.