To access the 3D menu you can use the dedicated 3D UI icon on the icon dock, or used the dedicated 3D button. Either way you're introduced to a carousel-like system, simply flick your finger sideways and you'll be able to rotate between the following options -- 3D Camera, 3D Gallery, 3D Guide (a tutorial on how to use the 3D aspect of the phone, the guide itself is in cool 3D as well), 3D Games and Apps, and finally YouTube 3D.
The 3D camera also gives you options to shoot in 2D, but more on the camera in our Features section on the second page. The 3D gallery shows all of your 3D content, and only 3D content. Which translates to -- content that you acquired via use of the phone's 3D camera, such as videos, pictures or converted pictures in 3D. Speaking of picture conversion, if you have a 2D image, you can convert it to 3D on the phone. The results are horrific to view, and it barely qualifies as a 3D picture, but the option exists nonetheless.
The 3D Guide shows you how to create, share, view and connect 3D content on the phone.
3D Games gives you access to the following games in 3D, and thankfully they're not trial games. You get to Play NOVA (it's like Halo for phones), Asphalt 6, Golf Pro 2 and Gulliver's Travels. If you purchase any more 3D games (so far the only available ones are from Gameloft) they'll be stored here. The icon for the 3D Games and Apps is rather uninspired, it shows all your apps and some sort of handheld console inside a dustbin, what's up with that?
YouTube 3D is an exclusive YouTube portal available to users of the LG Thrill or HTC EVO 3D, you can capture 720p videos and upload them to YouTube, where other people with the LG Thrill or EVO 3D can view them. Of course vice-versa applies as well.
If you're someone who gets headaches from viewing 3D movies, you'll be getting migraines with the LG Thrill, it is absolutely not for people with weak eyesight or epilepsy. Overall the 3D menu is a fun way to wow your friends or a stranger you're attempting to befriend, either way it's a sometimes only thing, not an all the time thing.