To most people, Halloween means witches, ghosts, and ghouls. Google's obviously gone with this definition too, since the animations on Android Pay have been updated to include a range of the undead, pumpkins, witches, wizards, ghosts, ghouls, and skeletons.

There seem to be a lot of these so we've been unable to find them all and present them here, but we've found a few, which you can see in the screenshots, GIFs, and YouTube video. The animation appears when you have paid for something using Android Pay, and seems to work in all countries Android Pay is active (the US, UK, Singapore, Hong Kong, and Australia at the moment).

If you're in either of those countries, you can download Android Pay on Google Play, or at APK Mirror.

Thanks: Drew, Jacob, Max, Chris (Twitter), and anyone else who sent this in!