ATTACKING MARTIAN LONG ARM MEDALLION VERSION - HORIKAWA - JAPAN
Tin battery operated robot with fly eyes and firing guns behind opening chest doors. Featuring in the Aldens 1971 catalog where it is called the Mighty Mechanical Walking Robot. The original Attacking Martian has had some changes: long plastic arms and distinctive circular decorations on the door instead of the green plastic windows. The Aldens catalog version shows a robot with the more usual closed tin arms, not the open Busy Cart arms seen here.
This body top was used as the basis (or vice versa?) of the Space Commander Tank Robot.
The 1972 Aldens catalog confirms that the long arms are original.
Box details?