Hacker Cat
This emoji is a non-RGI proprietary ZWJ Sequence. It has not been recommended by Unicode, meaning it will most likely appear as its component emojis across most platforms.
A variation of Ninja Cat which was shown using a laptop computer. This emoji was included in Windows 10 as a proprietary ZWJ Sequence which was not supported by other vendors.
Variations included the canonical ๐ฑ๐ค Ninja Cat as well as ๐ฑ๐ Astro Cat, ๐ฑ๐ Dino Cat, ๐ฑ๐ Hipster Cat and ๐ฑ๐ Stunt Cat.
Hacker Cat and the other variations of ๐ฑ๐ค Ninja Cat were removed in Microsoft's Fluent emoji redesign, released in late 2021.
The Hacker Cat emoji is a ZWJ sequence combining ๐ฑ Cat Face,ย Zero Width Joinerย andย ๐ป Laptop.ย These display as a single emoji on supported platforms.