Unproduced: Manimal Encounter
Pictured above is a sample of the "Manimal Encounter", a proposed addition to the Star Brigade that was unfinished when G.I.Joe was cancelled in 1994.
The card pictures "General Hawk: Alien Encounter Commander", but the figure in the packaging is Stalker. The figures are an extension of the Star Brigade Armor-Tech figures that were released in 1993. The figures were to come with a plastic egg that housed a plastic alien.
Image Courtesy of: Simon Hurley