The Comic Action Heroes returned in full force in '77.
Nothing was cut from the '76 lineup but Mego added the working Batcopter to the lineup, the working copter had begun it's life as a Microman piece (see more on that later).
The Spiderman exploding tower playset was pitched in the US and the UK but no known samples exist, the Spidercar did end up being released in a gift set, the following year.