Ok, I like this strategy far more than Travolta's martingale. XD
It's also more solid than the one I came up with, even if the earnings are shared between 4 players and not just 2. Indeed, they can't lose. And I don't think BK can make it so they'll always get the "no win no loss" scenario. This one is definitely up to luck.
So, as it is, our dear Usogui has to make them crumble from the inside, doesn't he?
And to do that, the two players who contracted a 200 bios-debt from referee Ikon are likely targets. They definitely can't afford being betrayed at the end by some not-willing-to-share teammate, after all. So maybe they'll listen to Baku, if he proposes some kind of shady deal to them.