Here is something extraordinarily cool. During Beast Machines' second season, you might remember that Megatron had a gigantic flying fortress modeled after his head - the Grand Mal. You might also be aware that a toy was designed for the Battle for the Spark subline of Beast Machines toys, which was canceled from that line and ultimately released in the following Robots in Disguise line. You might also remember that toy being rather unlike the depiction of the Grand Mal from the series, featuring spider legs not featured in the show.
What we have here to share with you now by way of the Robot Points blog
is a previously never-before-seen prototype of Megabolt Megatron - one which follows the on-screen design of the megahead fortress much more closely. The design of the alternate head form lacks the spider legs, and features the thrusters at the rear as on the original design. As with the release version, the toy transforms into a robot mode, this one with clear chest panels showing off moving gears.
What is shown in this blog post is a resin prototype, and it is believed that this concept never progressed beyond this point. It is thought that the design was overhauled into the one that was released to maximise playability with the spider legs, and perhaps also because the gears in the chest were too expensive to implement.
Check out the full story on the Robot Points blog
and take a look at this rare piece of unreleased Transformers merchandise.