The interactive doodle features five doors, each hiding its own ghost or monster making up the letters of 'Google'.
Users click on a door to reveal the spooky resident inside, as an eerie score plays in the background.
A black alley cat sits inside a bin, and clicking on the animal causes it to run across the doodle and take the user to search results for Halloween.
> Halloween mobile apps roundup: 'The Walking Dead', 'Trick or Treater'
