Detana! Twin-Bee Yahoo! – Playstation 1

Detana! Twin-Bee Yahoo! - Platform: Playstation 1

Dark play
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Pause the game in arcade more and press 
Up, Up, Down, Down, Left, Right, Left, Right, X, Circle

Level skip
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Pause the game and press Left, Left, Right, 
Right, Down, Up, Down, Up, Circle, Circle, 
Square, Square, Triangle, X, Triangle, Triangle 
(You must get 573,000 or more points in "Twin Bee Yahoo" 
mode first)