Chuck's Reviews Transformers Cyber Series Battalion Optimus Prime and Megatron
 

The Cyber Series was our first look at the Evergreen designs put into effect. The figures have stayed in production through the years with deco changes here and there. Amazon sells two packs of some of the core characters, Optimus Prime and Megatron are one of those sets. I believe that Prime features a more metallic paint job while Megatron's deco now features a bit more brown. Transformation is simple for both but that's not necessarily a bad thing. These make for great introductions to the Transformers brand and the sets make a great gift.

http://www.youtube.com/watch?v=66ayVYW5TtY