Gather evidence from the cards and find your way to the truth!
Turnabout Festival was Teppen's twentieth expansion.
Series and characters included in this expansion (Bold indicates a series new to Teppen)
- Ace Attorney: Apollo Justice, Trucy Wright, Phoenix Wright, Ema Skye, Winston Payne, The Blue Badger, Judge, Klavier Gavin
- Mega Man X: Deerball, Iris, Colonel, Alia, Tornado Tonion, Hellguarder, Volt Catfish, Dynamo
- Street Fighter: Dan Hibiki, Sakura Kasugano, Karin Kanzuki, Ibuki, Don-chan, Rose, Lucia Morgan
- Monster Hunter: Catherine, Carol, Natalie, Uroktor, Blango, Arzuros
- Ōkami: Jamba, Chun, Ajimi, Tama, Black Imperor
- Darkstalkers: B.B. Hood, Harry the Dog, Lord Raptor, Le Malta
- Resident Evil: Jill Valentine, Excella Gionne, "Pincher" (a Cerberus B.O.W.)
- Sengoku Basara: Imagawa Yoshimoto, Itsuki
- Haunting Ground: Fiona Belli, Hewie
- Devil May Cry: V
- Red Earth: Tessa
- Otoranger: Keyboard Mary
''Turnabout Festival" contains examples of:
- Breather Episode: After a trilogy of dinosaurs, killer robots, and evil clones, this expansion has much lower stakes, with the only real point of concern being who zombified Imagawa's pooch.
- Fake Alibi: The true criminal B.B. Hood claims to have been watching the fireworks festival at the time of the crime.
