The title says it all! after the jump lie the newly-revealed song inclusions in the latest round of Donder Packs' leftover mystery sets. Not all songs have been unveiled, though!
Donder Pack Vol.21: June 27th, 2019
| Title |  |  |  |  |  | |
|---|---|---|---|---|---|---|
 | Le Tombeau de Couperin クープランの墓 | ★4 | ★7 | ★8 | ★8 | |
 | ??? | ★? | ★? | ★? | ★? | |
 | Behemoth DJ Myosuke | ★5 | ★7 | ★8 | ★10 | |
| Climb! Mount Parfait 食らいむ！まうんとぱふぇ／unatra | ★3 | ★6 | ★8 | ★9 | |
| The Carnivorous Carnival | ★4 | ★6 | ★7 | ★9 |
Donder Pack Vol.22: July 25th, 2019
| Title | | | | | | |
|---|---|---|---|---|---|---|
| Spread the Wings!! The Idolm@ster Shiny Colors 「アイドルマスター シャイニーカラーズ」より | ★3 | ★4 | ★4 | ★6 | |
 | ??? | ★? | ★? | ★? | ★? | |
| Kimi no Planet 君のプラネット | ★3 | ★5 | ★6 | ★8 | |
| Hikari no Kanata e ヒカリノカナタヘ | ★4 | ★7 | ★8 | ★9 | ★10 |
| 142 Toki no Watari-dori 142トキノワタリドリ | ★? | ★? | ★? | ★? |
Donder Pack Vol.23: August 22nd, 2019
| Title | | | | | | |
|---|---|---|---|---|---|---|
 | Paradisus-Paradoxum Re:Zero -Starting Life in Another World- 「Re:ゼロから始める異世界生活」より | ★3 | ★5 | ★6 | ★8 | |
| Toccata and Fugue and Rock トッカータとフーガとロック | ★5 | ★7 | ★8 | ★9 | |
| Hinaru Medjed no Hinaru Yuu'utsu Yuuya Kobayashi (IOSYS) feat. Momiji Yamamoto (monotone) 秘ナルメジェドノ悲ナル憂鬱 コバヤシユウヤ(IOSYS) feat. 山本椛 (monotone) | ★4 | ★5 | ★7 | ★10 | |
| Senpuu no Mai (1*) 旋風ノ舞 | ★? | ★? | ★? | ★? | |
| ??? | ★? | ★? | ★? | ★? |
Donder Pack Vol.24: September 25th, 2019
| Title | | | | | | |
|---|---|---|---|---|---|---|
 | Marisa Stole the Precious Thing Touhou Project Arrange/ARM+Yuuno Yoshimi (IOSYS) feat. Karin Fujisaki 魔理沙は大変なものを盗んでいきました／東方Projectアレンジ ARM＋夕野ヨシミ(IOSYS) feat.藤咲かりん | ★4 | ★5 | ★6 | ★9 | |
| Surf Zapping t+pazolite/Synchronica t+pazolite 「シンクロニカ」より | ★4 | ★6 | ★7 | ★10 | |
| Reitouko CJ ~Amen Taiko Brothers~ 冷凍庫CJ ～嗚呼面太鼓ブラザーズ～／DJKurara | ★5 | ★7 | ★8 | ★10 | |
| The Magician's Dream | ★4 | ★6 | ★7 | ★8 | |
| ?2??? (2*) | ★? | ★? | ★? | ★? |
(1*) - Ratings are left generic, as the song's wording here makes hard to figure whether version of Senpuu no Mai is featured, or if both versions are used for a longer playable cut.
(2*) - Mystery title wording left as (partially) reported from the official website.
