Synopsis

Mushiking: The Ultimate Battle Mushiking is a massively popular beetle-battling arcade game that's taken the world by storm. Over 420 million cards have been printed, and the franchise has exploded far beyond arcades into Game Boy Advance games, TV anime, and more. Kent Mirai is a determined young player obsessed with becoming the world's greatest Mushiking champion. He battles constantly, honing his skills with his beetles. Everything changes when a mysterious rival named Shiro Mizorogi shows up—and he's terrifyingly strong. Other beetle battlers crumble against him one after another. The secret to Shiro's dominance is a beetle no one's ever seen before: the Dark Side Neptune Beetle. It radiates an evil presence with glowing red eyes. Shiro's been trained by the ruthless Dr. Black, who'll do anything to win. Now Kent faces his ultimate challenge as his Mushiking takes on Shiro's Dark Side Neptune Beetle in an explosive showdown.

Content compiled by AnimeList.moe from publicly available sources.