move labels.txt olabels.txt
copy biolabel.txt labels.txt

move rules.txt orules.txt
copy biorules.txt rules.txt

move game.txt ogame.txt
copy biogame.txt game.txt

move units.gif ounits.gif
copy biounits.gif units.gif

move city.txt ocity.txt
copy biocity.txt city.txt

move menu.txt omenu.txt
copy biomenu.txt menu.txt

move icons.gif oicons.gif
copy bioicons.gif icons.gif

move cities.gif ocities.gif
copy biocity.gif cities.gif 

move terrain1.gif oter1.gif
copy bioter1.gif terrain1.gif 

