A Twitch Streamer Just Killed Off Two Shadow of the Erdtree Bosses Using Mind Control, and Zero Hands
What technology does Perri Karyal use to control game actions?

Perri Karyal uses electroencephalography (EEG) technology to control game actions. She employs a brain monitoring headset that decodes electrical information from her brain in real-time, translating specific brain activity patterns into in-game actions.
What new control methods did Karyal implement in Shadow of the Erdtree?

Karyal implemented a hands-free 'mind control' virtual controller using electroencephalography (EEG) brain monitoring headset and eye-tracking software in Shadow of the Erdtree1. The EEG headset allowed her to control specific in-game actions by imagining objects, actions, or emotions, while the eye-tracking software helped her control her character's movement.
What specific mental images does Karyal use to perform game actions?

Karyal uses specific mental images to perform game actions in Elden Ring, such as imagining herself pushing a cube forward to execute a roll, imagining a plate spinning to make her character perform an attack, and making herself angry to heal6. She has trained the software of her EEG headset to recognize these patterns in her brain's electrical activity and assign them to virtual controller inputs.