In 1985 figures were released on both regular 34-Back cards and 34-Back cards with the Triple Win Game Promotion. Series Two, Series Three, and Series Four figures were available in 1985 on both versions of 34-Backs.
One other item of note is the filecard and logo change that occured between 1985 (Series Four) and 1986 (Series Five). The figures that debuted in Series Four had 2-D G.I. Joe logos on the front of the cards as well as peach filecards. In 1986 those figures were still available but now had 3-D G.I. Joe logos and gray filecards. Again, this applies to all Series Four figures and one Series Three figure--Storm Shadow.