Sumo has to be one of the most unusual sports in the world. Sumo Spins is a new online slot game made by Red Tiger Gaming focused on this ancient Japanese sport. This game has very beautiful graphics and includes high-quality visuals and a sumo ring used as a matrix. The 5-reel, 40-payline online slot has three Sumo fighters (Rikishi) that provide special features. For example, the red rikishi will nudge the reels. On the other hand, the green one provides free respins and the blue rikishi activates power rolls and transforms symbols. If you want to get Free Spins, you should wait to hit at least two Rikishi symbols.