Opening the cover revealed two toys in one - a complete Astro Boy and another robot that looks very much like Robot "Number 5" or "Johnny 5" from the movie "Short Circuit (1986)" and obvious inspiration for the newer "Wall•E" recently released by Pixar
DX Astro Boy / Tetsuwan Atom by Takara
This section can also be called the Robot Number 5/Wall•E section because the resemblance is uncanny. Not sure if the movie "Short Circuit" came out first or this toy did. The Endo -skeletion can be assembled to resemble a robot and you could play around with the parts to make your own robot or weapons platform.