Action Mask (Action Bastard/Action Kamen/Masked Muchacho) (アクション仮面 Akushon Kamen) is the favorite TV show and toy of Shin Chan starring an masked hero with the same name. Shin Chan has a lot of toys, books etc that are based on Action Kamen.
Shin Chan usually sees this show, and if not, he usually records it. Action Mask has its own manga spin-off.
The arch rival of Action Mask is MekeMeke Z, supreme leader of the Black MekeMeke Group. After several seasons, finally the Army and its leader are completely defeated, thus showing another main villain: Eagle Head, the ill-fated brother of Mimiko Sakura. Once defeated, the main bad guy becomes the Count Flower, played by a handsome actor.
Members of the Black MekeMeke Group
- MekeMeke Z is the supreme leader of the Black MekeMeke Group (ブラックメケメケ団), and the main antagonist of the series in many episodes.
- Mekemeke X (メケメケX) and Mekemeke Y (メケメケY). It is unknown exactly what they are. They may be siblings of General MekeMeke Z, or even the same person.
- The four kings of darkness: Beauty Destroyer, the General Chimpan Monkey, Diridiri, General Mantis and Sumisumi, Leader of the Iguanas. They are the four men of confidence of General Mekemeke.
- An indeterminatable number of servants, whose face appears as an letter B.
- Yankiki, Crazy Bikers Leader (暴走リーダーヤンキッキ).
- Eagle Head is the most visible face of the new society that tries to end the coastal cities causing tsunamis. He's Mimiko's older brother.
- Ranpopo (ランポポ) is a secret identity under which Eagle Head hides.
- Zoinbak (ツバインバッハ) is the leader of the Sparrow Group.
- Count Flower (フラワー男爵) is played by a handsome young actor, who draws much attention of women in the series.
- Dark Shadow (ダークシャドー) is physically very similar to Masao.
- The Beast of Prices (甘栗仮面).