I just posted the Analogue Mega Sg Jailbreak firmware v7.5 on Github. This release brings all of the fixes from official firmware v4.5, plus:
- CD BIOS replacement works now after a reboot
- Coleco Gradius mapper + flash memory supported. Use extension .CF0 for this game.
- Coleco Jungle Hunt / Learning with Leeper had stuttering scrolling. This is fixed.
- Coleco Risky Rick console detection fixed. Note: there are two versions of the game. A full version and a demo version. If the game does not let you progress to level 2, it is the demo version.
- Fixed Super Game Module AY-3-8910 write delay. This fixes the pitch of speech on Wizard of Wor.
- Megaman Wily Wars not saving EEPROM data. This is fixed.
Source: https://github.com/SmokeMonsterPacks/Mega-Sg-Jailbreak
UPDATE: FirebrandX has just tweaked his recommended settings based on this new firmware:
Genesis core OCD settings updated for video from my review of the 7.5 JB firmware for the Mega Sg:https://t.co/8rgzUqBFSy
— FirebrandX (@FBXGargoyle) June 14, 2019