"Hack Attack", known as "Infiltrate SOL's Cyber Fortress" in the Japanese version, is the sixteenth episode of the Yu-Gi-Oh! VRAINS anime. It first aired in Japan on August 30, 2017 and aired on Teletoon on October 21, 2018. It became available with official subtitles via Crunchyroll on the same day as the Japanese air date.
In order to search for the truth about the incident ten years ago, Playmaker hacked into SOL's mother computer, and heads for the data bank that lies deep within its system. However, standing in his way is a Dueling AI program! Can Playmaker get past this new threat and seize the truth?!
Prototype Ai-A vs. Prototype Ai-B
The Duel is conducted as a Speed Duel and begins from an unspecified turn.
Ai-A uses the three copies of "Darkwhip" to Link Summon "Tentacluster Nautilus" (0/LINK-3/↙↓↘) to the Extra Monster Zone. As "Nautilus" was Link Summoned, AI-A activates its effect to Special Summon a "Tentacluster" monster from its hand to a zone it points to. It Special Summons "Tentacluster Drillworm" (600/1200) to the bottom Link Point of "Nautilus". Ai-A Normal Summons a second copy of "Drillworm" to the bottom-left Link Point of "Nautilus". Ai-A activates the effect of "Nautilus" to destroy all cards it points to. As both "Drillworms" were destroyed, Ai-A activates their effects, allowing it to send a random card from Playmaker's hand to the GY for each, and if a monster was sent to the GY, another random card is sent to the GY. "Flick Clown" and "Dual Assembwurm" are sent to the GY by the effect of the first "Drillworm", while "Linkslayer" and "Cynet Defrag" are sent to the GY by the effect of the second.
Turn 2: Playmaker
During the Standby Phase, as Ai-A controls no monsters in the Main Monster Zones, and has no cards in its hand, it activates the effect of "Drillworm" in its GY, banishing the other "Drillworm" from its GY to send a random card from Playmaker's hand to the GY, then Special Summoning it in Defense Position (600/1200). "Dotscaper" is sent to the GY.