Are you afraid that your experience with Netflix is not dynamic enough? This could change with a new rumble feature tested by the mass streaming platform to deal with the impact of large-scale action scenes on your phone. The movie, tentatively named "Project Rumble Pak," comes from one of Netflix's Studio Hack Days, when developers try to innovate the streaming service in surprising ways. The Rumble Pak Project seeks to mimic some of the rumble features found in modern console controllers, such as DualShock 4 or Xbox One controllers, which attempt to provide reactive haptic feedback based on what's happening on the screen. But this time, it's your smartphone that uses the vibrations that are usually triggered by calls and notifications to enhance your viewing experience. (We've seen something similar on the Sony Xperia XZ2, though it's not really an essential feature.) It's obvious we need less when we watch movies and TV shows at home, and we don't expect Netflix to ship vibrating couches anytime soon. Smartphones weren't designed with this feature either, while Nintendo Switch's HD Rumble feature recreates the sensation of moving an ice cube around a glass. Basically, the app just turns on your phone's vibration settings, which can be confusing if you're also getting notifications for incoming calls or messages. But as viewers are usually forced to sacrifice some visual quality in order to watch their favorite Netflix streams on the go with their smartphone, even a low level of immersion would be a welcome addition for those who want it.