THAT’S WHAT IM THINKING EJFJEJSD
My guess is that they all played together. But eventually maybe, most likely, Doha began removing the cassette tapes of the other players so that they don't remember anything until there was a time when Doha's cassette tape was removed by Bada since they realized he's dangerous, but Bada's cassette tape got damaged in the process or something that's why his memories are foggy
I can totally see this being the case, but then there’s still so many open ends on who the creator of the game is
Honestly I’m more stoked on knowing who created the game and their purpose
What if they all played together?? And someone just keeps on erasing/forgetting playing the game? But Doha's the one whos going to remember everything now and just keeps playing to keep Bada by his side and never end the game