# Perl, 58 bytes <!-- language: lang-pl --> sleep print"\ec",$-++%2?'\o/ _0_ ':'_o_ 0 / \\ 'while 1 Tested with Bash. I don't know for sure, but for Windows `cmd`, the following _might_ work: <!-- language: lang-pl --> sleep print`cls`,$-++%2?'\o/ _0_ ':'_o_ 0 / \\ 'while 1 (Anyone that could confirm Perl on Windows, that'd be great!)