Yu-Gi-Oh! Theme is the English opening theme to the Yu-Gi-Oh! anime series. It was composed by Wayne Sharpe. It debuted on September 29, 2001, and aired during episodes 1 to 49. It was replaced by the second Yu-Gi-Oh! theme in episode 50. It returned on May 1, 2004, in episode 122 and aired until the end of the series.
It was also used as the opening to the Yu-Gi-Oh! Capsule Monsters anime series.
Each season using this opening features visuals representing that season.
- Episode 1 to 49 - Features scenes from Duelist Kingdom.
- Episode 122 to 144 - Features scenes from the Battle City Semi-Finals.
- Episode 145 to 184 - Features scenes from Waking the Dragons.
- Episode 185 to 198 - Features scenes from Grand Championship.
- Episode 199 to 224 - Features scenes from Dawn of the Duel.