/usr/share/man/man6/xgalaga-hyperspace.6x.gz is in xgalaga 2.1.1.0-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/man/man6/xgalaga.6x.gz
/usr/share/man/man6/xgalaga.6x.gz