This is the only "Ancient Gear" Tribute monster that doesn't have the traditional "Ancient Gear" effect: If this card attacks, your opponent cannot activate any Spell or Trap Cards until the end of the Damage Step.
"Chimera" is also a term for any kind of being that is composed of 2 or more individual bodies. Another word for "chimera" is "合成獣" (gōseijū), as seen in the kanji part of this card's name. The 合成獣 (kimera) is also a fictional concept in the Fullmetal Alchemist universe.
This monster has the slots in which "Green Gadget", "Red Gadget", and "Yellow Gadget" fit into, as seen on other monsters that relate to them, such as "Stronghold the Moving Fortress".