Since I had the G1 Whirl from my younger years, I did what I do best. Hacked it up. I used some of the original g1 Whirl parts on this custom : head, claw, feet, coptor blades. for the canon arm, I used parts from a VERY expensive zoid saber model kit. I did some heavy moding to build of this base figure, especially in the waist area (articulated) feet and other areas.
somehow, I integrated a working flashing 1mm LED, switch, battery and wires in his little head. A small on/off switch on the back activates the blinking RED led. *the g1 toy and art had the eye red as well*
Also, I installed a motor to his main helicopter blade (check out the video to follow demonstrating it) There's a small button on the tail of the helicopter which when pressed, spin his yellow blades of carnage.