Implementing Japanese characters in a terminal-based visualizer is notoriously tricky due to how "wide" characters are handled. Font Dependencies : Without a proper Unicode font like Noto Sans CJK
New Logic:
: Run the command cmatrix -c to attempt to display the original Matrix-style characters (primarily Katakana). cmatrix japanese font
fc-cache -fv
Define the Japanese character string constants. cmatrix japanese font