As the title suggests, if you help promote indie hero Gun Caliber, HJU member Bueno will give you a bunch of Go-Busters promo items and various other rare merchandise.
Gun Caliber, if you haven’t heard of him(where have you been?), is a gun toting, beer drinking, smoking masked hero in Tokyo. He’s teamed up with Battle Hero when he took a trip to Shibuya and even has his . Check out the video below.