Streamer Who Conquered Elden Ring Using Her Mind Develops Movement-Control Device, Then Voices Regret Over Its Risks: “I Don’t Support That Behavior—It’s Extremely Dangerous.”

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In a fascinating exploration of the line between can and should, streamer PerriKaryal, known for her unique approach to gaming, has taken her experiments to a new level. This time, she’s using her psychology background in a daring way: a custom controller connected to her head that seemingly controls her physical movements.

According to reports, PerriKaryal’s latest experiment involved manipulating her brain’s balance system through a method called galvanic vestibular stimulation. In a striking TikTok video, she showcased nodes connected to her head while an off-screen participant controlled her movements with an Xbox controller. The setup sent currents through her head, creating temporary imbalances. Her initial attempt to walk straight while under the influence of her custom controller was just the start.

In a longer Twitch stream (with gameplay kicking off around 02:30:00), PerriKaryal was fully wired and used the controller to play the arcade racing game Trackmania. The concept was to enhance immersion by simulating the g-forces experienced in a high-speed race. As she put it, she wanted to “feel the g-forces.”

While she certainly experienced those g-forces, she also dealt with a severe headache, hot flashes, “buzzy” vision, and hallucinations of flashing lights. At the end of her TikTok, she cautioned viewers, “Don’t do this. Don’t build this. I do not approve of anyone making this themselves. It’s incredibly dangerous, and I’m not liable.”

Upon reading about this experiment, my first reaction was genuine concern. Thankfully, PerriKaryal seems to have come through without lasting effects, but seriously, don’t try this at home. The fleeting fame from TikTok isn’t worth the risk.

For those looking for safer gaming experiences, check out the best PC games you can enjoy right now with just a mouse and keyboard—no wires attached!