There's a lot in this trailer to get the fandom chattering on social media. There's also a heartening acknowledgment that this series is a musical, something trailers for musicals have mostly been hiding recently. But possibly most dramatically, Adam — the Big Bad of season 1 — appears to be back. The season 2 trailer shows Vox stepping up and fomenting war, even as Heaven is considering peace. Hazbin Hotel season 2 launches on Prime Video on Oct. 29.