diff --git a/audiogame-manager.sh b/audiogame-manager.sh
index 5beeff7..0025b32 100755
--- a/audiogame-manager.sh
+++ b/audiogame-manager.sh
@@ -307,6 +307,9 @@ download() {
         dest="${dest//%20/ }"
         # Remove the destination file if it is empty.
         test -s "${cache}/${dest}" || rm -f "${cache}/${dest}" 2> /dev/null
+        if [[ "${redownload}" == "true" ]] && [[ -e "${cache}/${dest}" ]]; then
+         rm -v "${cache}/${dest}"
+        fi
         # Skip if the item is in cache.
         test -e "${cache}/${dest}" && continue
         if ! wget -4 -O "${cache}/${dest}" "${i}" ; then
@@ -818,7 +821,7 @@ gameList=(
     "Castaways 2"
     #"Chopper Challenge"
     "Christmas WhoopAss"
-    #"Constant Battle"
+    "Constant Battle"
     "Copter Mission"
     "Crazy Party"
     "Crazy Tennis"
@@ -927,6 +930,7 @@ declare -A command=(
     [l:]="Launch given game without interactive audiogame-manager menu specified by its wine bottle."
     [N]="No cache, delete the installer after it has been extracted."
     [P]="Print a list of packages required by audiogame-manager."
+    [R]="Redownload. Removes old versions of packages from cache before installing."
     [r]="Remove a game. This will delete all game data."
 )
 
@@ -951,6 +955,7 @@ while getopts "${args}" i ; do
         l) game_launcher "${OPTARG}";;
         N) noCache="true";;
         P) checklist quiet;;
+        R) redownload="true";;
         r) game_removal;;
     esac
 done