Dorabase: Doraemon Super Baseball Gaiden  

Dorabase: Doraemon Chouyakyuu Gaiden, ドラベース ドラえもん超野球〈スーパーベースボール〉外伝

In Tokyo during the 22nd century, Dorabase is set. Kuroemon, a cat robot of the same type as Doraemon and captain of the Edogawa Doras baseball team, serves as the protagonist. The manga follows the adventures of this team as they face numerous challenges and evolve from losing every game to becoming a top amateur baseball team in the world. Despite some changes in the rules of baseball, the core mechanics remain largely unchanged. Notably, three secret gadgets from the main Doraemon series are allowed for use during each game.