15 Easter Eggs were found for "Case Closed":

Item	Title	Rating
Simpsons Songs in the Key of Springfield CD case	Hidden 'We Do' Lyrics	7.4 with 16 votes
Basket Case	Hidden Trailer	8.3 with 6 votes
Triple Trouble (Beastie Boys)	Hidden Closed Captions	6.3 with 16 votes
Simpsons, The	Simpson's/South Park	7.2 with 196 votes
Duke Nukem 3D	Beavis and Butthead Homage	6.2 with 4 votes
Grand Theft Auto	A Cheat on the Case of the CD	7.0 with 170 votes
Banjo-Kazooie Nuts and Bolts	Products of the Deep	8.0 with 1 votes
Human Clay (Creed)	Creed Origin	7.1 with 148 votes
Sims House Party, The	Safari on the Display Case	4.3 with 132 votes
Final Fantasy VII - Advent Children	FF7 CD Case Reflection	7.0 with 15 votes
Yoshimi Battles The Pink Robots (The Flaming Lips)	Secret Message	7.7 with 43 votes
Robert Onion (Frank Black)	Acrostic in Lyrics	8.8 with 37 votes
Counter-Strike: Condition Zero Deleted Scenes	The Castle Was Here	7.1 with 7 votes
Windows CE	Godzilla Roar	4.8 with 51 votes
Simpsons, The	Hidden Caption	4.0 with 27 votes