| NEC PC-9801 Series 5.25in. disk |  I/O Magazine Disk - October 1990 | 1990 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - October 1992 | 1992 | 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 1990 | 1990 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - September 1991 | 1991 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | I/O Magazine Disk - September 1992 | 1992 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Ichitaro Ver.4 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Ichitaro Ver.5 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Ichitaro Ver.5' | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Ichitaro ver4.0 + Hanako | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Ike Ike Dendai Bus | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | JanKen | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Jet Kun | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Joro v2 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Junk Jankey's 2 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | KDD CG 1 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | KDD CG 2 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Keichu | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kemesis | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | KOK Golf | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kui Kui Quiz | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kyarukan | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kyoukan 2nd S | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kyoukan K | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kyoukan Y | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Kyuuseishu no Yabou | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Leaders Quiz | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | LL Palace - No. 2 Genova | 199? | 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 |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 6 | 1992 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 7 | 1992 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 8 | 1992 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Omake Disk Tsuushin No. 9 | 1993 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Login Super Omake Disk | 1994 | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Magical Girls | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Mahjong Satokara | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Mahou no Shougakusei Clit-chan | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Mana '94 | 199? | Unknown Japan |
