That is a running gag throughout the entire series. However, it first happened in the season one episode, "Homer's Night Out"
"Co-Dependents Day" has a parody of Star Wars Episdode 1, called "Cosmic Wars: the Gathering Shadow"
The duration of Shadow of the Cloak is 1800.0 seconds.
Shadow first made his appearince on sonic x in the episode project:shadow.He was then killed off and fans were outraged.So in season 3 of sonic x in the episode trick sand shadow was brought back with no memory of anything.
The black and white episode is episode 19 of season 4. The name of the episode is Shadow Play
Action Packed
'Marge Gamer' (17th episode, 18th season).
"Co-Dependents Day" has a parody of Star Wars Episdode 1, called "Cosmic Wars: the Gathering Shadow"
Sonic turns to Dark Sonic in episode 67 (3rd season). It only just shows 5 seconds of his power, but....... Hope this answer helped. Oh, and the episode name is "The Black Trap" or "Teasing Time".
Episode 33 of Sonic X entitled "Project: Shadow".
Shadow first appears in episode 33 of Sonic X. Shadow makes his last appearance in episode 38 of Sonic X.
The duration of The Prince's Shadow is 2700.0 seconds.
The duration of Shadow Chasers is 3600.0 seconds.
The duration of Shadow Raiders is 1800.0 seconds.
The duration of In the Shadow of the Sun is 3240.0 seconds.
The duration of The Shadow of the Desert is 3600.0 seconds.
The duration of The White Shadow is 3600.0 seconds.
The duration of Shadow Fighter is 1800.0 seconds.