The Final Duel: Part 1 Yu-Gi-Oh! : Season 5 Episode 37

The time of destiny is now! Yugi vs. Atem! If Yugi defeats Atem, Yugi proves he's ready to stand on his own, and Atem can join his friends in the world beyond... but Yugi and Atem will be separated forever! If Atem defeats Yugi, they can stay together... but Atem will not journey to the next world! The final test is about to begin!