Hundreds of irate users of Nintendo’s new console have complained that playing on the 3DS makes them feel unwell.
The Nintendo 3DS was launched last week in Britain, Europe and the U.S.
The console has two screens, a built-in motion sensor and three cameras, enabling users to enjoy games in 3D without wearing special glasses.
The Nintendo 3DS fools the brain into believing it is viewing 3D as the right eye sees one set of images and the left sees another set of images.
However gamers have reported side-effects including nausea, headaches and dizziness.
One Twitter user said: “Warning to everyone, if you’re already ill and have a migraine, DO NOT play the 3DS with 3D on. Urgh.”
Another said: “The 3D gave me a headache, so I hated it.”
Before the Nintendo 3DS was launched in Japan, Nintendo issued a health warning saying that kids under six should not use the device in 3D mode as it might harm their eyesight.
Players of all ages are advised to take a break every 30 minutes to avoid eye fatigue.
Nintendo said: “If your physical condition worsens or you become ill, please stop playing at once.”