BARCELONA—Finally, we have discovered a real use for home robots. They will play with your cat.

LG's Rolling Bot, announced here at Mobile World Congress today, has a built-in laser pointer. Why do you want a laser pointer on a robot? Anyone with a cat knows.

The Rolling Bot is a sphere about the size of a volleyball. It has an 8-megapixel camera and Wi-Fi. Using a companion app on the LG G5—or any Android smartphone, but most easily the LG G5—you can use the robot for home monitoring, remote recording, or to shoot a little red light across your floor and watch your cat insanely chase it.

The robot also has a microphone and speaker, so you can roll it around to talk to family members, or spook your cat into thinking that somehow you are trapped inside a volleyball-sized sphere. The robot rolls like BB-8, so the camera stays upright.

That's pretty much all I know from LG's presentation. Clearly, I need to get more time with this robot, and possibly bring animals.

LG hasn't announced the price of the Rolling Bot, or whether it can be filled with catnip.

LG's VR Headset and 360 Camera
I can tell VR is going to be a big theme of this show. Alcatel has already announced its VR headset, and Samsung is setting up an entire VR theater outside Plaza Catalunya in central Barcelona.

LG joins the fray with a better VR headset than it had last year, and a new 360 camera.

The LG 360 VR connects to the G5—and only the G5—with a USB-C cable. It has adjustable lenses, so even though you can't wear it with glasses, I could adjust it so I could see pretty well. It'll play both 360-degree VR content and standard 2D movies; LG said it could be used "to watch your most personal movies" on an airplane, although I don't advise that.

The goggles are pretty slim and noticeably lighter than Samsung's Gear VR; they don't require a strap over the top of your head. You can't move around, but you can swivel your head. You use your phone as a touch-screen control, or use OK and Back buttons on the goggles themselves. I watched a few VR movie scenes, and they were about the same quality as the Gear VR—decent, but not nearly as immersive as HTC Vive.

LG understands that VR requires content, so it's also now pitching the LG 360 Cam—once again, probably as an accessory to the G5 rather than as a photographer's VR camera. The LG 360 Cam has two 13-megapixel lenses, which combine to make a 16-megapixel image. It will also record 2K video with 5.1 surround sound using three mics, although it doesn't have an external mic input.

The camera has 4GB of memory plus a MicroSD card slot, and it pairs with the G5—or any Android phone—to upload videos to YouTube or Google Street View, or view them on a VR headset.

No pricing yet, but LG said both might be bundled with G5 phones, so they'll probably be pretty affordable—or even seen as free.

This article originally appeared on PCMag.com.