The original concept of the Zaku was simply a disposable underling, with its name derived from the sound of a huge man (or many soldiers) walking and the Japanese term 雑魚 (zako), meaning "inferior fish" (the term also signifying expendable grunts) [REF].
The Zaku is the first mobile suit to feature its parts (a damaged head) and is shown in 3 of the 4 box arts in the 1/35 U.C. Hard Graph line of plastic models made by Bandai, which heavily resembles real battle fields [REF].