| NEC PC-9801 Series 5.25in. disk |  Metal Eye 18 | 1993 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Metal Eye 2 18 | 1994 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Metal Eye 2 Special Disk 18 | 1994 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Metal Eye Special Disk 18 | 1993 | Elf Japan |
| NEC PC-9801 Series 5.25in. disk | Metal Force Model Y-C9302 | 199? | You-en-tai |
| NEC PC-9801 Series 5.25in. disk | Metal Fork | 1990 | KUNI Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Metal Mover Jastrike | 1995 | Apple Pie Japan |
| NEC PC-9801 Series 5.25in. disk | Metamor Meena | 1994 | Apple Pie Japan |
| NEC PC-9801 Series 5.25in. disk | Metys's SnowWars | 1992 | Bio 100% Japan |
| NEC PC-9801 Series 5.25in. disk | Meurtre d'un Clown - Doukeshi Satsujin Jiken | 1985 | Thinking Rabbit Japan |
| NEC PC-9801 Series 5.25in. disk | Mezase! Top Player - Tennis Tennis 2 | 1993 | Softec Japan |
| NEC PC-9801 Series 5.25in. disk | Micat | 1992 | Micro Core Japan |
| NEC PC-9801 Series 5.25in. disk | Michiyo Dreamy - The Quiz Master | 1993 | System Sacom Corp. Japan |
| NEC PC-9801 Series 5.25in. disk | Micro Musician II | 199? | Music Network |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator | 199? | Microsoft |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator - Japan Map | 1994 | Microsoft |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator - San Francisco Scenery | 199? | Twilight Express |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator - Washington D.C. Scenery | 199? | Twilight Express |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator Ver. 4.0 | 1992 | Microsoft |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator Ver. 5.0 | 1994 | Microsoft |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator Version 4.0 - Grand Canyon Scenery | 199? | Mallard |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator Version 4.0 - Hawaii Scenery | 199? | Mallard |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator Version 4.0 - Japan Scenery | 199? | Mallard |
| NEC PC-9801 Series 5.25in. disk | Microsoft Flight Simulator Version 4.0 - Tahiti Scenery | 199? | Mallard |
| NEC PC-9801 Series 5.25in. disk | Microsoft Space Simulator - 42 Oku Kounen no Fantasy | 1995 | Microsoft |
| NEC PC-9801 Series 5.25in. disk | Mid-Garts | 1989 | Wolf Team Japan |
| NEC PC-9801 Series 5.25in. disk | MIFES 5.0 | 199? | Unknown Japan |
| NEC PC-9801 Series 5.25in. disk | Might and Magic - Book One: Secret of the Inner Sanctum | 1988 | Starcraft, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Might and Magic - Book Two: Gates Two Another World! | 1988 | Starcraft, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Might and Magic - Clouds of Xeen P | 1993 | Starcraft, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Might and Magic - Darkside of Xeen | 1994 | Starcraft, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Might and Magic III - Isles of Terra | 1992 | Starcraft, Inc. Japan |
| NEC PC-9801 Series 5.25in. disk | Mighty Head | 1986 | Apollo Technica Japan |
| NEC PC-9801 Series 5.25in. disk | Migrain | 1991 | Acclaim Japan |
| NEC PC-9801 Series 5.25in. disk | Miki | 1992 | Cocktail Soft. Japan |
| NEC PC-9801 Series 5.25in. disk | Million Fever - Exciting Pachinco Game! | 1994 | Raccoon Japan |
| NEC PC-9801 Series 5.25in. disk | Mime 18 | 1996 | Studio Twinkle Japan |
| NEC PC-9801 Series 5.25in. disk | Minimum Guynarock | 1992 | TechnoGrad Japan |
| NEC PC-9801 Series 5.25in. disk | Mink no Omochabako Vol. 01 - Two_Shot Diary 2 SP Disk 18 | 199? | Mink Japan |
| NEC PC-9801 Series 5.25in. disk | Mink no Omochabako Vol. 02 - Pero Pero Candy SP Disk | 199? | Mink Japan |
