Since MiSTer Menu ported to Arrow SoCKit –
http://modernhackers.com/porting-mister-to-arrow-sockit-fpga/, now Sega Genesis MiSTer Core ported to Arrow SoCKit FPGA as well.
Genesis Core does not require any addon board or SDRAM, you can use a factory Arrow SoCKit FPGA to use with the ported Genesis MiSTer Core.
You can Download Arrow SoCKit edition of Genesis MiSTer Core from Github:
https://github.com/MiSTer-Arrow-SoCKit/Genesis_MiSTer
Arrow SoCKit Menu:
https://github.com/MiSTer-Arrow-SoCKit/Menu_MiSTer