Emoji Scavenger Hunt works by using your phone's camera and machine learning to identify objects in the real world. Google made the game free to play and browser-based, which means it works on any smartphone — no app required.
Here's how to play: Emoji Scavenger Hunt will present you with an emoji — say, a watch or a newspaper — and ask you to look for the real-life version of that object as a timer counts down.
Once you find the object, just point your camera at it and the game should be able to identify whether it's the correct item. You'll then move on to the next round, and the game will add a few more seconds onto your timer for every item you find correctly.
Emoji Scavenger Hunt works similarly to Google's Lens feature, which first launched on its Pixel 2 smartphone last year. Lens basically works like a "smart" magnifying glass, using the Pixel's camera to look up things like artwork, landmarks, and movies.