Mad Gasher CH120 SF

Mad Cancer was Tetsuya Watarigani's Beyblade. The beast inside of it is a crab. It evolves into Dark Cancer.

Anime
Its debut was episode 5, where Benkei discovered Tetsuya, who was holding Cancer and petting some crabs. It was later used to destroy some unnamed beyblades, as well as Osamu's Wind Libra. it defeated Flame Sagittario when Tetsuya threw a rock at it and knocked it down. In order to free Madoka, Gingka and Pegasus defeated it.

In episode 7, it battled Dark Bull and was defeated.

In episode 9, it battled Rock Leone and lost to Kyoya's new special move.

In episode 28, Tetsuya followed Yu back to the Dark Nebula's base, where later he joined the Dark Nebula. Doji used a special machine to evolve Mad Cancer into Dark Cancer.

Game
It is unknown whether it will be released or not. It seems to have the same Spin Track and Performance Tip as Dark Cancer in the anime.