<ul data-eligibleForWebStory="false">The Outlast Trials Season 4 introduces conjoined twins, Otto and Arora Kress, as new major enemies who work together to find and eliminate players.The twins share a single body, with Arora positioned almost on top of Otto's shoulders, giving them a 360-degree field of vision.Otto uses a chainsaw, while Arora attacks players with toxic chemicals, making sneaking around more challenging for players.Red Barrels describes the twins as 'the most difficult Prime Asset' players have yet encountered in The Outlast Trials.