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DARK Cyberse Link Effect
Link Arrows: ↖ ↗ ↙ ↘
2+ Cyberse monsters, except Tokens
If this card is Link Summoned using only Link Monsters as materials: You can Special Summon a number of "Darkcode Tokens" (Cyberse/DARK/Level 1/ATK 0/DEF 0) equal to the Link Monsters used as materials for this Summon. You can only use this effect of "Darkcode Hacker" once per turn. Negate the effects of a Link Monster your opponent controls that is linked to this card. While this card is face-up on the field, if you would Link Summon a Link-2 or higher Cyberse Link Monster using any monsters you control that this card points to as materials, 1 monster your opponent controls that this card points to can be used as 1 of the other materials.
A monster designed in mind to counter both Firewall Dragon (and possibly any evolution and/or Archetype support it would get in the future), because I'm sure they would've made something like this in the Anime at some point. Its first effect is quite potent, as if all the materials used for its Link Summon, then you can replace an equal number of those monsters with "Darkcode Tokens", and from there you can use those Tokens for other Link Monsters, preferably Cyberse Link Monsters. Just like I said, its next effect was to counter Firewall Dragon and Decode Talker if those cards link themselves to this card. Pay attention; the effect states "Negate the effects of a Link Monster your opponent controls that is LINKED to this card", meaning if a Link Arrow on Firewall or Decode points to this card then their effects are negated but this card does not have to have its Link Arrows pointing back, it can but its not necessary. Finally, as a big F U to your opponent, if you wanted to Link Summon any Link-2 or higher Cyberse Link Monster by using specifically a monster this card points to (but not this card), you can also use 1 monster your opponent controls this card points to as well for that Link Summon, and you do this as often as you like but again, you cannot use this card and it has to be face-up on the field for the entire Link Summon.