Install cmatrix-xfont by entering the following commands in the terminal:
sudo apt update sudo apt install cmatrix-xfont
Description:
X11 font for cmatrix
Console Matrix simulates the display from "The Matrix", this package provides the font to run cmatrix in an xterm.
Homepage: http://www.asty.org/cmatrix/
Version: 1.2a-5build3
Section: universe/x11