Playing Halo? This streamer could kill you with her mind

A Spartan in white armor runs from an explosion
(Image credit: Microsoft)

Twitch streamer Perrikaryal has been using nothing but her mind to shoot up her enemies in Halo Infinite. Also, a psychology researcher, Perrikaryal, has swapped out her Xbox wireless controller for an electroencephalogram (EEG). 

This powerful piece of technology reads the electrical activity in Perrikaryal's brain to detect her desired inputs. In conjunction with the EEG, Perrikaryal's setup also involves trackers that read her eye and head movements to control her Spartan's aim and motion in-game. 

In a clip shared by Jake Lucky on Twitter, Perrikaryal shows off her hands-free skills, laughing uproariously as she guns down enemy spartans with nothing but thoughts and eye movements.

Perrikaryal's recent Halo Infinite triumphs come off of the back of her previous efforts in Elden Ring. In an impressive display of brain chemistry, Perrikaryal completed FromSoftware's famously tough action RPG using the EEG for all of the game's controls except movement. Though impressive, the streamer's entirely hands-free efforts in Halo Infinite are certainly a step forward. 

In addition to taking names in Halo Infinite, Perrikaryal has also tried out her new setup in Overwatch 2 and Valorant. If you're interested, you can check out previous streams on Perrikaryal's Twitch channel

As well as being impressive in and of itself, there's a noble goal behind Perrikaryal's work. Speaking with Kotaku, Perrikaryal stated that her aim is " to make the hands-free controller all-encompassing (all buttons and triggers accessible) and easier than a regular controller [...] so that anyone can use it for a comparable gaming experience."

Perrikaryal also revealed that she aims to up the ante by streaming Minecraft on September 12. Amusingly entitled "MINDcraft," the researcher also outlined how challenging this next project might be: "A game like Minecraft is going to be an insane challenge because of all the menus that are required to navigate." 

In order to reach the lofty heights required to navigate Minecraft, Perrikaryal has also been working alongside a “few labs and research groups... experimenting with biosignals [like blood pressure and heart rate] and EEG to integrate all of this into VR and a more immersive gaming experience.”

As well as being undoubtedly cool, these ambitions could have big applications for accessibility and, with luck, may lead to easier times for disabled gamers in the long run.

Looking to get in on the action? Check out our list of the best FPS games as well as the best RPGs.

Cat Bussell
Freelance contributor

An editor and freelance journalist, Cat Bussell has been writing about video games for more than four years and, frankly, she’s developed a taste for it. As seen on TechRadar, Technopedia, The Gamer, Wargamer, and SUPERJUMP, Cat’s reviews, features, and guides are lovingly curated for your reading pleasure.

A Cambridge graduate, recovering bartender, and Cloud Strife enjoyer, Cat’s foremost mission is to bring you the best coverage she can, whether that’s through helpful guides, even-handed reviews, or thought-provoking features. She’s interviewed indie darlings, triple-A greats, and legendary voice actors, all to help you get closer to the action. When she’s not writing, Cat can be found sticking her neck into a fresh RPG or running yet another Dungeons & Dragons game. 

Read more
Meta AI Typing
Meta can turn your thoughts into words typed on a screen if you don't mind lugging a machine the size of a room around
Pro gamer recording video live stream while playing computer games
How to get into game streaming in 2025
bHaptics vest
This haptic vest might be my new favorite Meta Quest 3 accessory
The Project Arielle chair
Razer’s heated (and cooled!) gaming chair is hands down the best thing I tried at CES 2025
Sadie and John shoot up a town
This one change made my games so much more immersive (and it only takes one click)
The BenQ Zowie XL2586X+ gaming monitor pictured at IEM Katowice 2025.
I used a 600Hz esports monitor, but it didn't make me any less terrible at Counter-Strike
Latest in Consoles & PC
Playing games on the Razer Handheld Dock Chroma without an external display.
The Razer Handheld Dock Chroma offers Steam Deck owners a premium design and, of course, plenty of RGB
The Hori Split Pad Pro attached to a Nintendo Switch OLED and placed on a colorful desk mat.
I've used the Hori Split Pad Pro with my Nintendo Switch for years and it's still great, but there are some better options in 2025
A tattoo studio in The Sims 4.
The Sims 4 Businesses & Hobbies expansion pack looks like the small business overhaul I've always wanted
Image of Grand Theft Auto 6 promotional art and Corsair's PC cases
GTA 6 could reach PCs in early 2026 according to Corsair – but I'm already sick of waiting
New Metal Gear Solid Delta screenshot from the State of Play stream.
Turns out the leak was accurate - Metal Gear Solid Delta: Snake Eater releases in August this year and the inner PS2 gamer in me cannot wait
An image of the Nintendo Switch 2
Nintendo Switch 2 patent suggests you’ll be able to use the console upside down for some reason
Latest in News
Apple MacBook Air M3
The M3 MacBook Air is officially discontinued, but the M2 MacBook Air will live on elsewhere and that's good news
Stock photographs of people smiling and looking at laptops in a small business environment.
This web hosting platform elevates your online presence
The Samsung Galaxy S25 Edge on display at Galaxy Unpacked
Exclusive: the Samsung Galaxy S25 Edge will have durability to match its ‘sexy’ form
Metaphor: ReFantazio
Sega was Metacritic's highest-rated publisher of 2024 thanks to the critically acclaimed Metaphor: ReFantazio and Like a Dragon: Infinite Wealth
AirPods Pro Review
Apple has quietly updated its guidance on how to clean your AirPods, and suggests you buy a kit… from Belkin
China
Chinese hackers who targeted key US infrastructure charged by Justice Department