- Early pieces of Alt
- Many beta designs of Judy. The first one is almost confirmed in Pop'n Music 11.
- Many beta designs of Rie-chan.
- Pieces of Risette's beta designs.
- Many beta designs of Sanae-chan. Almost the third one is comfirned.
- Many oceanic designs of Pierre & Jill.
- Early pieces of Papyrus.
- Two early designs of Midori.
- A JPG image of the characters. Pop'n Music 7 Poet to a tan-skinned angel boy, Pop'n Music 4 Henry to a drastic attire, Dino to an early version of Satou-san, an angel that is a relative to the first one, and an orange Shishamo.
- Bumblebee Nyami.
- Taiyo and robot Nyami.
- Some-likely festival Nyami.
- An early concept art of Trauma Punk Mimi and Nyami.