• Max Pane - If the player has [Glass Guon Stone] , Glass Cannon will change appearance and will not break if the player takes damage. Instead, the Guon Stones will be destroyed, losing the synergy but granting one extra hit before it breaks.
• The Max Pane synergy works with the [Lich's Eye Bullets] , meaning the Gunslinger never has to worry about the weapon shattering.
• While shattered (empty due to taking damage), the Glass Cannon has no sprite, effectively making it invisible. If the Glass Cannon is emptied by using up its ammo reserve instead of taking damage, the gun remains unshattered and can be dropped and retrieved like any other. It can still be shattered if held while taking damage.
• Unlike the [Balloon Gun] , it's not possible to drop the weapon while it's shattered. This also makes selling it to the Sell Creep impossible in this state.
• However, it can still be thrown . If the player throws the Glass Cannon while it is shattered, the gun will disappear, making retrieving it impossible.
• The Glass Cannon is one of the few guns able to bypass the Boss DPS cap .
• [Holey Grail] , if used properly, can refill ammo for Glass Cannon. If Glass Cannon is picked up before [Holey Grail] , its ammo can be refilled to half-full upon taking damage. However, if [Holey Grail] is picked up first, Glass Cannon will break and ammo will not be refilled. This can be avoided by simply dropping [Holey Grail] and picking it up again.
• When in co-op mode, the Max Pane synergy activates regardless of who has which item. If the wielder of the cannon doesn't have the stone, they can receive damage while holding the cannon and it will not shatter.

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