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Corey, in Tag Force 1-3
Corey, in Tag Force 1-3
English name
  • Corey
Japanese translatedKohei Yamaji
Japanese name
Japanese山路やまじ 康平こうへい
Base山路 康平
Furiganaやまじ こうへい
RōmajiYamaji Kōhei
  • Male
SchoolDuel Academy
DormitoryObelisk Blue
Tag ForceArmageddon's Aftermath
Tag Force 2The Countdown
Tag Force 3The Way Leading To Annihilation
Video game debutYu-Gi-Oh! GX Tag Force
Appears in
PlayStation 2Yu-Gi-Oh! GX Tag Force Evolution

Corey, known as Kohei Yamaji in the Japanese version, is a character appearing in the Tag Force series. He is an Obelisk Blue student.


Tag Force[edit]

Corey is often found at the volcano or the beach. He barely speaks in the Japanese version, and speaks robotically in the various localized versions. Due to sharing in-duel lines with the rest of the Tier 3 characters, however, he speaks normally during Duels.

During the Tag Force tournament, he partners with Nova.

Tag Force 2-3[edit]

Corey partners with Simon for the Obelisk Blue Tournament in Sundays.


Tag Force 2-3[edit]

Strongly likes Likes Neutral Dislikes Strongly dislikes
  • Dried Mackerel
  • Rice Ball
  • Cheese
  • Salmon
  • Jam
  • Top-Grade Salad
  • Chestnut
  • Fermented Soybean
  • Bean Paste
  • Spicy Curry
  • Cook's Sandwich
  • Any sandwich not listed
  • Spicy Fish Egg
  • Pepper
  • Phantom Pepper
  • Pineapple
  • Carrot
  • Chocolate
  • Lobster
  • Fermented Cheese
  • Cream
  • Fried Shrimp

Ending Scenes[edit]


Corey uses Final Countdown Decks.

Tag Force[edit]

Tag Force 2[edit]

Tag Force 3[edit]