2 official rulings from Bandai, last ruled Mar 28, 2024. Straight answers to how this card actually resolves.

My opponent has this Digimon in play. What happens if an effect is activated that causes you to gain memory on activation and lose memory at end of turn? (i.e. [BT1-090]/[Gravity Crush], [BT1-021]/[MetalGreymon], [BT1-040]/[WereGarurumon], [BT1-058]/[Chirinmon], [BT1-075]/[Digitamamon], etc.)
You can't use Option/Digimon card effects to gain memory, but you can still lose memory if a card effect specifies as such. At the end of the turn, you’ll lose memory as specified by each effect.
Ruled Mar 28, 2024
My opponent has this Digimon in play. Can I gain memory from the security effect of [ST2-13]/[Hammer Spark]?
No, this Digimon prevents you from gaining memory from security effects.
Ruled Mar 28, 2024
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