Juuken Gattai is a series of Legendary Geki Beast toys in the shape of animals with lots of fun gimmicks. Each can be combined with Geki Touja and Geki Fire!

Geki Shark has small wheels underneath its body to glide across flat surfaces, and three color LED lights on its gills that light up in a total of seven patterns and can be attached to Geki Touja's and Geki Fire's back to form Geki Shark Touja and Geki Shark Fire. Spin Geki Shark Touja's upper body to initiate its "Dai Gan Gan Zan" finishing move! Two button batteries are required (included) for the LED lights to function.