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Product Number 77008
MR R-4
マスクロック (Maskrock)
(warrior with mysterious mask)

Series 2

The US filecard is not known to us - if you have the information, please share ! (e-mail)

Stone: ?
Weapon: ?
Japanese Weapon:
インパルサー (Impulser) 

Japanese Filecard Stats
身長 1.90 メートル Size: 1.90 meters
体重 1.03 トン Weight: 1.03 tons
超人硬度 9 (うでの部分は12) degree of hardness 9 (can sometimes be 12)
ボデイタイプ 宇宙クリストバル body type: Space Cristobalite


The US filecards is unknown to us, if you have it, please share ! (e-mail)

Japanese Filecard:

性格と能力 いつも覆面をかぶっている正体不明の岩石超人。素顔も過去もすべてが謎に包まれている。すばらしい武道家で、精神集中によってうでの硬度をかえることができる。

武器 / インパルサー 気迫エネルギーをパワーに変える棒のような武器。精神集中力の強さによって光線の強さが異なる。

Card variations

Marbles was released in different ways in different countries. On the european continent, Marbles was released in a BANDAI box, in England and the USA on a Tonka card. Generally, the boxed Rock Lords are harder to find.
The first card shown below is slightly different than the normal US Tonka cards, it is bilingual (english-french) and has the two different name versions "Marbles" and "Marbre" (french for "marble").
In Japan, Marbles was sold in a Bandai Box, and the figure itself has major differences to the one sold in the western world. The figure was called "Maskrock".

Marbles, Canadian Tonka card

Marbles, European Box

Marbles, Australian Box ("Machine Men")

Maskrock, japanese box

Back of the japanese box

Marbles, Tonka US card
Transformation Instructions & Description

Below is a picture of Marbles in its Rock Form, and a picture from the Bandai catalogue.

japanese transformation instructions

japanese catalogue picture



The japanese version of Marbles has a totally different colour scheme.


This picture, taken from an early australian promo comic shows a prototype version of Marbles. As you can see, Marbles was first planned to be released in a different colour, looking more like real marbles : a mixture of white and grey. Also the "skin" was painted brown/orange, and not green as in the produced version. The head of the prototype Marbles also looks more "human" than the head of the produced figure. In prototype form he looks much more like a hero, than the more "funny" released version.