This is a posable action figure of a character from science-fiction/anime.
What a warehouse find! This Battle Droid was produced by Hasbro in 2002, and has a Tomy sticker on the back to sell it in Japan. This Arena Battle version of the apparently easily defeated drones of the Republic comes with a blaster with a detachable "blast effect," and a backpack. Quantities are extremely limited, so act fast! Please note that figures such as this are mass produced, and as a result some inconsistencies in finish and painting may occur; these are not considered manufacturer's defects. If you absolutely must have perfection, prepare to do some touch-up work on your own.