Stream anime episodes online for free. Watch Yu-Gi-Oh! GX Episode 121 English version online and free episodes. Anime Episode guide, Chapter Yu-Gi-Oh! GX Episode 121 English dubbed Sub-Desert Duel Now that the Mysterious Eye monster has taken over Marcel, it now has even more power then before. Adrian becomes upset with this thinking that it has betrayed him. With supplies, including medicine and food running low at the academy, they must figure out someway to replenish their supplies so they can heal Blair. Bastion tells them of a submarine out in the desert that could have supplies on it. Jaden, Jesse, Axel, Jim, and Adrian (who is also spying on them for the Mysterious Eye) head across to the desert to the submarine. On the way they are challenge by a Rock Spirit sent by the Mysterious Eye. Jesse duels and defeats it and they head into the submarine. After finding supplies, Rock Spirit returns and sends his monsters into the sub to destroy Jaden and the others.
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