ATTACKING MARTIAN, THREE COLOURS - HORIKAWA - JAPAN
The 3 colour versions of the 1966 1st type non-rotating battery operated Attacking Martian robot - Brown silver gold in order of rarity - gold being the hardest to find - Made in Japan - mostly tin plate metal with green plastic inserts in chest doors. Earliest have white painted metal battery compartment later changed to plastic. Earlier ones also have a translucent green pointed switch. An easy way to spot the difference between early and later is the tapering of the arm/hand on later ones. You can see the distinct taper on the gold version.
Widely on sale in 1966.