However, if additional Treasure Rooms are entered, such as those created by Forget Me Now or Red Key, then the 20% penalty for entering a Treasure Room will be taken without receiving the 20% bonus for descending a floor. In other words, every Treasure Room skipped will add 20% to the generation chance.
+100% if a Treasure Room has been skipped This chance can be modified in various ways: The base chance for a Planetarium to generate is 1%. Planetariums only appear in chapters 1, 2, and 3.
