- Name
- Arkham Products
- Fullname
- アーカムプロダクツ
- Scene Group/Person
- No
- Country
- Japan
| Title | Product code | Developed by | Year | |||
Number of Colors Improvement Committee: for Adult; 2nd Collection
(色数向上委員会 for Adult 第2集) 
  2× 
|
Arkham Products | |||||
|
Number of Colors Improvement Committee: for Normal; 2nd Collection
(色数向上委員会 for Normal 第2集)
2×
|
Arkham Products | |||||
Number of Colors Improvement Committee: for Normal; 5th Collection
(色数向上委員会 for Normal 第5集) 
2×
|
Arkham Products | 1994 | ||||
|
Number of Colors Improvement Committee: for Normal; 6th Collection
(色数向上委員会 for Normal 第6集)
2×
|
Arkham Products | 1994 | ||||