| Sega Master System Roms Name | File Size (Kb) | Downloads |
|---|---|---|
| Machine Gun Joe (J) [!] | 23 Kb | 26 |
| Maechiko's Omikuji (SG-1000) (PD) | 1 Kb | 4 |
| Maechiko's S Sniper (SG-1000) (PD) | 1 Kb | 7 |
| Magali no Castelo do Dragao (Monica no Castelo Hack) | 129 Kb | 8 |
| Magic Drive Plus BIOS [!] | 5 Kb | 6 |
| Mahjong Sengoku Jidai (J) [!] | 61 Kb | 16 |
| Mahjong Sengoku Jidai (J) [b1][o1] | 122 Kb | 6 |
| Mahjong Sengoku Jidai (J) [o1] | 122 Kb | 3 |
| Mahjong Sengoku Jidai (Prototype) | 61 Kb | 5 |
| Makai Retsuden (J) [!] | 78 Kb | 14 |
| Marble Madness (UE) [!] | 91 Kb | 92 |
| Marble Madness (UE) [b1] | 91 Kb | 7 |
| Marble Madness (UE) [T+Spa100 sinister] | 91 Kb | 6 |
| Marksman Shooting - Trap Shooting (U) [!] | 33 Kb | 31 |
| Master Mario Bros (Teddy Boy Hack) | 20 Kb | 358 |
| Master Mega Man (Wonder Boy in ML Hack) [o1] | 128 Kb | 23 |
| Master Mega Man (Wonder Boy in ML Hack) | 128 Kb | 11 |
| Master of Darkness (UE) [!] | 161 Kb | 53 |
| Master of Darkness (UE) [b1] | 161 Kb | 9 |
| Master Smash Brothers V1.0 (Psycho Fox Hack) | 94 Kb | 41 |