| NEC PC-9801 Series 5.25in. disk |  ASCII Otanoshimi Disk Vol. 6 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | ASCII Otanoshimi Disk Vol. 7 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | ASCII Otanoshimi Disk Vol. 8 | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Cone Paper Vibration Data Shuu Dai-1-kan | 1991 | Unknown Japan |
| MSX 2 disk | Dungeon Striker | 1991 | Unknown Japan |
| Sharp MZ-2500 disk | Dust Box '91 Special | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Extra Disk vol. 1 | 1991 | Unknown Japan |
| Sharp X68000 Series 5.25in. disk | Gradius 3 Cube Simulation | 1991 | Unknown Japan |
| MSX 3.5in disk | GreyColleague | 1991 | Unknown Japan |
| MSX 2 disk | Haradius | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - April 1991 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - February 1991 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - July 1993 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - June 1991 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - March 1991 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - May 1991 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - October 1993 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - September 1991 | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Infinitia | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Kankoku Heigo 1991 | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Lion | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 1 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 3 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 4 | 1991 | Unknown Japan |
| Sharp X68000 Series 5.25in. disk | Long Night Maikochan no Kiken na Yoru | 1991 | Unknown Japan |
| MSX 2 disk | Milkymate | 1991 | Unknown Japan |
| MSX 2 disk | MSX-FAN Disk #1 | 1991 | Unknown Japan |
| MSX 2 disk | MSX-FAN Disk #2 | 1991 | Unknown Japan |
| MSX 2 disk | MSX-FAN Disk #3 | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Nouten Chokugeki! 2 | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Pachislot Party | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Pallmith | 1991 | Unknown Japan |
| MSX 2 disk | Pallmith | 1991 | Unknown Japan |
| MSX 2 disk | Poles | 1991 | Unknown Japan |
| Sharp X68000 Series 5.25in. disk | Port Tower Monogatari | 1991 | Unknown Japan |
| MSX 2 disk | Poyo Poyo Life | 1991 | Unknown Japan |
| Sharp X68000 Series 5.25in. disk | Puzzle | 1991 | Unknown Japan |
| Sharp X68000 Series 5.25in. disk | Puzzle 15 | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Ribon Panic! | 1991 | Unknown Japan |
| NEC PC-8801 Series disk | Selen | 1991 | Unknown Japan |
