power supply required for terminator 2 console

I recently dug up my decades old Terminator 2 video console (aka Ending-Man BS-500 AS), and, because of nostalgia, I wanted to play some Mario on it. Unfortunately, I’m missing the power supply cable and I have no clue on what its power supply requirements are. Internet searches didn’t come up with any answer, so any help in this regard will be highly appreciated.

Thanks!