I'm not smart enough to create something like that on my own, sadly! The special text effects are called "Kinetic Text" and they were coded by one Daniel Westfall. I credited and linked to him in the game credits, but just to make things easy, here's the git repo for the script:
https://github.com/SoDaRa/Kinetic-Text-Tags
Good luck to your friend with whatever they're working on! :)