GaGa Armlet

GaGa Armlet (ガガの腕輪) is a mysterious O-Part of the Incas that was created 120 years ago as one of two keys, along with the GiGi Armlet, that would allow the user of the two to rule the world with Incan super science.

Kamen Rider Amazon
The original Gaga Armlet bears a strike resemblance with its twin counterpart, GiGi Armlet, with only the snout of the figure facing upward instead.

Kamen Rider Decade
In the A.R. World of Amazon, the GaGa Armlet was gold in color and has a design similarly found in Inca Architecture.