Birdy the Mighty: Decode is a tV series anime that premiered in summer 2008, produced by A-1 Pictures.

About the production: the story comes from a manga, there are 13 episodes of about 24 minutes and its current status is "finished".

Its main genres are action, comedy and sci-fi, with themes such as Aliens, Dissociative Identities, Urban Fantasy and Robots.

On AniList, Birdy the Mighty: Decode has an average score of 71%, a good score, and appears on 26,317 users' lists.

The franchise continues in or follows from: Tetsuwan Birdy DECODE: THE CIPHER.

Tsutomu Senkawa is an average high school kid who is busy studying for his senior entrance exams. Tsutomu goes out for some fresh air, after a hard day's work studying for a big test, when he runs into a guy fleeing from a pretty young lady. The pursued man is actually an interplanetary criminal on the run from a Federation agent called Birdy Cephon Altera. Caught in the midst of this chase, Tsutomu gets thrown by the man at Birdy, which kills Tsutomu. Fortunately for Tsutomu, there is a way to keep him alive, although it comes at the price of discarding his body. He ends up merged into Birdy's body.

Official synopsis from AniList.