To be honest, I thought Billy would survive more playtests. More than Miriam, at least. But as it turns out, if you make a character that can take players' agency away, they will really want to kill that character.

Billy Wei may be unassuming compared to the more body-horrific characters in Warped Beyond Recognition, but he can become a huge danger to a boarding party very quickly, as my players can attest. Here's a video about creating him, and some thoughts: