- Decade mode bonus characters
At the character selection screen, highlight the indicated character and press Plus to change them to the corresponding bonus character:

Den-O	Highlight Nega Den-O
Blade	Highlight Autovaijin
Agito	Highlight G3X
Kabuto	Highlight Dark Kabuto
Kuuga	Highlight Gatack
Ryuki	Highlight Ryuga

Successfully complete Climax mode. Then at the character selection screen, highlight the indicated character and press Plus to change them to the corresponding bonus character:

Diend	Highlight Magma Dopant
Dark Decade	Highlight T-Rex Dopant
Hibiki	Highlight Worm
IXA	Highlight Punch Hopper
Kiva	Highlight Gelnewt

- Decade's finishing move
At the character selection screen, highlight the corresponding characters in order in Decade mode and press Plus over each one before moving to the next character: Kuuga, Agito, Ryuuki, Faiz, Blade, Hibiki, Kabuto, Den-O, and Kiva. If you entered the code correctly, you will hear the sound of a phone ringing. Select Kamen Rider Decade, and scroll down his move list. Change his 'A + B' move to his finishing move.

- Play as Dark Decade in Climax mode
Successfully complete all Climax mode stages with Kamen Rider W to unlock Dark Decade in Climax mode.

- Decade's finishing move (Finish Form)
At the character selection screen, highlight the corresponding characters in order in Decade mode and press Plus over each one before moving to the next character: Kuuga, Agito, Ryuuki, Faiz, Blade, Hibiki, Kabuto, Den-O, and Kiva. Successfully complete Decade mode to unlock Decade's finish move (Finish Form). You can select it when you choose the sub-attack you want. Your choices will be either the Finish Form finishing move or the ability to use five different Final Attack Rides. Notice: If you choose Finish Form, you will only have the attacks using the ride booker.