I have tried different video media players which I have had some limited success ...... my main issue was that I could not playback the media 'fullscreen'.
In the end I ended up using VLC.
This does not 'run as root' natively but using @rockedge tip it does 
https://forum.puppylinux.com/viewtopic. ... 90#p123390
Install VLC in terminal
vpm i vlc
then enter
sed -i 's/geteuid/getppid/' /usr/bin/vlc
You should be good to go 