Tetsuya Watarigani

is a mysterious recurring blader in Metal Fight Beyblade.

Beyblades

 * Mad Cancer: is Tetsuya's first beyblade in both the anime and manga.


 * Dark Cancer: is Tetsuya's second beyblade in the anime. Daidouji used Mad Cancer as an experiment and Dark Cancer was created.

Beast/Finishing Moves

 * is the beast inside Tetsuya's Beyblade.

Mad Cancer


 * Track Change: Tetsuya's special move is He first used this move on Episode 9 (anime)

Dark Cancer


 * Six Crab Sea King: Tetsuya's first move is Tetsuya first used this attack on Episode 28 (anime)

Trivia

 * Tetsuya's surname, Watarigani (渡蟹) means "swimming crab", or alternatively the "Japanese blue crab", one of the most widely fished crabs in the world.
 * The majority of Tetsuya's sentences either include or end with the word "kani" (～カニ（蟹）), the Japanese word for "crab".