Microsoft revealed a refreshed version of its Windows 10 emoji set last week, but it appears there are some Windows-only additions hidden away. Six new emoji will be exclusive to Windows 10, and they all feature the Windows ninja cat. If you're currently testing the Windows 10 Anniversary Update then you can combine the cat emoji with other emoji to see the ninja cat additions.
Emojipedia has detailed the secret additions, and the results include ninja cat, ninja cat flying, ninja cat at a computer, riding a T-Rex, drinking coffee, and in space. Microsoft's ninja cat was first discovered a year ago, and has turned into a meme amongst Windows fans. Microsoft has previously hidden the ninja cat in event invites, used it as Skype emoji, and handed out stickers promoting its ninja cat.