Toymakers produce football games about as fast as rabbits produce baby rabbits and, like rabbits, the games all look pretty much alike. One game, Foto-Electric Football ($6.95), has a tried and true but interesting gimmick. Do not be deceived by the "electric" in the name. This is not one of those games in which you line up your men, turn on the juice and watch in dismay as they vibrate all over the place, usually backwards. In this game one person selects a diagramed offensive play from a pack of cards, while his opponent picks a defense, also diagramed, from another pack. When the two cards are placed face to face on a lighted screen and a cardboard shield is removed, the result is shown. When the route taken by the runner—indicated by a zigzagging line on the offensive card—is intersected by an X, or tackier, on the defensive card, the play is over. Sometimes this happens behind the line of scrimmage. Sometimes it doesn't happen at all. In that case, touchdown! There are many plays, many defenses and variations on both, so the strategies are almost endless. Be the Vince Lombardi of your neighborhood.