/usr/share/menu/xmountains is in xmountains 2.9-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | ?package(xmountains):needs="x11" section="Games/Toys" \
title="Xmountains" command="/usr/games/xmountains"
|