At this point Philips began more intensely on arcade type conversion games, I'm not sure this was released with a cardboard cover. Freedom fighters did benefit from a makeover from the Videopac+ series which is one of the more readily available + titles. I happened upon the prototype/demo pictured below, initially labelled defenders, but seemingly changed by a past owner to reflect the release number and title,

Unsurprisingly based on the very popular arcade game "defender" of the time, however, this is set in free space and you men that you rescue float around in square capsules, this is a fast addictive scrolling game, with plenty of life in it, well worth a blast. TIP: Start off in any mode and move your ship to any of the corners, quickly switch to hyperdrive with the ship facing the opposite side of the screen, then no pulsar ships or drones will attack from the back and since your ship is on one of the far sides of the screen you will have more time to aim at the mines and pulsar ships. (Steve Routolo, Cincinnati, Ohio, Odyssey Adventure summer 1983)