This is my interpretation of what "footsies" are in Killer Instinct. Here's the document I was talking about in the video. Feel free to download it and own it for yourself!
https://onedrive.live.com/redir?resid=4C8BC9C01C2F3C10!68924&authkey=!AArYsPZ9Ii9lOBY&ithint=file%2cdocx
If you have any questions, feel free to ask!