Mood Swing Dice

Button Notation:	?
BMO Notation:	?

Before the round, a Mood Swing can be any size in the allowable range. During the game, whenever you re-roll a Mood Swing it will randomly change size. Mood Swings always choose from among all common die sizes (not all integers) with equal probability. The definition of “common” die sizes is 4, 6, 8, 10, 12, and 20. For a "Y?," add 1, 2, and optionally 16 as selections, for a "Z?" add an optional d16 and d30, and for a "P?" add a 1, 2, 16, 24, and 30.

Button Men Online omits the d16 from the Y? and Z? swing dice based upon precedent set by the original BMO site. Using a d16 in live play is thus optional as long as all players agree. A Moody P-Swing did not exist until after the current Button Men Online site and thus uses the d16 and d24.