Two of the three missing licenses from pop'n music 3 (Bit of Love and LET ME FEEL SO HIGH) finally make their CS pop'n music debut. ENDLESS SUMMER NUDE was the exception.
pop'n music 4 APPEND DISC's official website is the first CS pop'n music website with staff commentary on the new CS songs.
The Dreamcast version of pop'n music 4 APPEND DISC was the final version of pop'n music released for the failing Dreamcast console.
- Along with the port of Silent Scope (which was released the same day), it also was the last game KONAMI released in Japan for the Dreamcast.
Total songs: 41.

Staff Information

Executive Producer: Kazumi Kitaue
Producer: Yutaka Haruki
Director, Sound Director: はやP
Sound Data Analyzer: ぱぺひな, Junichiro Kaneda, Yoichi Hayashi, Yuichi Tsuchiya (KCE School)
Main Programmer: SANKYU (39)
Programmer: Masato Akiyama (あきやま), Tomikazu Nakazawa, Noriaki Usuba, Sanae Okano (さなえ), Kazuma Tsurumoto (つる)
Sound Programmer: Eiichi Kitsukawa
PocketStation Programmer: Noriaki Usuba
Design Director: Isao Matsuoka (Mさん)
Graphic Designer: ヒロミ, Nagayo Orihara, natsu, Masanori Kitaoka (キタオカ)
PocketStation Designer: Nagayo Orihara

Songlist

TEEN FOLK / 時代を変えてくTeenage / 馬場一嘉 (Jyun&Shingo) - 7
KAYOU HOUSE / Nanja-Nai / NAO with K Lyric by 所ジョージ (NK2000) - 8
KARAOKE / 愛言葉～アイコトバ / 課長とマミちゃん (Taro&Okon) - 8 / 23
FRIENDLY / Over The Rainbow / パーキッツ (Poet) - 9
DO UP / Joy! / Reddy Yoko (Mary) - 10
PASSION / 今宵Lover's Day / ミッキー・マサシ (the KING) - 11 / 22
AMBIENT / Birds / Sana (SANAE-chan) - 12
NIGHT OUT / 透明なマニキュア / Kiyommy+Seiya (JUDY) - 14
COQUETTISH / 恋は天然 / ナチュラルベア (RIE-chan) - 16 / 20
ANALOG TECHNO / ELECTRONISM / V.C.O. (PAL) - 18
FUTURE / ostin-art / ostin-art (ice) - 18
OKINAWA / 夢添うてぃ / Y.Morio & MINEHAHA (MAYUMI) - 18 / 24
CARTOON / TOON MANIAC / Theme from "TOON MANIA" (Henry) - 19
VISUAL 2 / Cry Out / good-cool feat. KoHey from Medical Trance Peach (Yuli) - 20
SUPER EURO / WE TWO ARE ONE / Lala Moore (Elle) - 20 / -
DISCO GIRLS / HONEまでートトゥナイト / good-cool feat. Mickin' & Tackin' (YUKI) - 21
POWER FOLK 2 / 君を壊したい / 新堂敦士 (Ash) - 24
EURO DANCE / Bit of Love / Super Wink "fut" Ryo Arche Asakawa (Dia) - 13
PUNK / LET ME FEEL SO HIGH / Little Bitch.K2 (Donna) - 16

As always, time unlocks are the norm. 2 hours of play gets you the first unlock (Brit Pop), then every 30 minutes of play after that unlocks another song. All songs will have been unlocked after 5 and a half hours of play.
To unlock Brit Pop, pick Dona as your character and clear Punk as your second stage, getting 80000 or higher as your score.
To unlock Horror, on your first stage, get the last to digits of your max combo to be 44. Then, clear Visual 2 as your second stage.
To unlock Pops Remix, outside of beginner mode, get 90000 or more points on your first stage, then clear Lovely as your second stage.
To unlock J-Tekno Remix, outside of beginner mode, choose Ice as your character, clear your first stage with more than 80000 points, and clear any song as second stage with a max combo of 70 or greater.
To unlock Dance Remix, outside of Beginners mode, pick Judy as your character, get a max combo of 50 or greater on your first stage, and a score of 90000 or greater on your second stage.
To unlock Bonus Track Remix, outside of beginners mode, get a max combo of 37 on your first stage, then get more than 90000 points on your second stage.
To unlock Special Ending, get a score of 100000 on your first or second stages.
To unlock Classic 4, get a score of less than 20000 on your first stage, and CLEAR your second stage with a score of 26000 or less.