download and install sl, lolcat and start a loop of sl -e | lolcat This is made for quick setup of a little joke.
Open your terminal, clone this rep using : git clone https://github.com/5BNeumann/slfun.git
Do : su And type in your password
Then do : cd slfun
Finally : ./slfun.sh
If you get an error try : chmod +x slfun.sh