Spoiler
30-31 Director's Cuts aired after the series had ended. It had some new and slightly altered scenes to
prepare for the W and Decade Movie.
Specials:
Super Adventure DVD
All Rider Net Movies
Movies:
Chou Den-O and Decade - Occurs after episode 15 of the TV series
All Riders Versus Dai Shocker - Came out the week before the last episode of the series I think.
Kamen Rider x Kamen Rider W and Decade - Occurs as the conclusion to the series
MV:
Journey Through the Decade
You're the Next Decade
Stay the ride alive