They are like Equipment checks and can be flexibly used to get actions in sequence. For example: The Classic Shower entry action can only be played once per game. It adds Extra_3 and the condition for the entry action to come up is "Needs not Extra_3".

(9) Extra Flags (616)

They are like Equipment checks and can be flexibly used to get actions in sequence. For example: The Classic Shower entry action can only be played once per game. It adds Extra_3 and the condition for the entry action to come up is "Needs not Extra_3".