Mobile Suit Gundam has 1 animated season and series and explores the brutal realities of war through giant humanoid machines called Mobile Suits, blending political conflict, human drama, and realistic mecha combat across multiple timelines.

Neon Genesis Evangelion has 1 animated season and follows troubled teenagers piloting mysterious biomechanical robots called EVAs to defend humanity, while diving deep into psychological trauma, identity, and existential dread.

Tengen Toppa Gurren Lagann has 1 animated season and tells an explosive story of rebellion and limitless ambition, where humanity pilots ever-growing robots to fight oppression and defy the very laws of the universe.

Code Geass has 2 animated seasons and combines high-speed mecha battles with intense political strategy, following a genius rebel who uses giant Knightmare Frames and mind-control powers to overthrow a tyrannical empire.

Full Metal Panic! has 4 animated seasons and blends military action and comedy as a teenage soldier pilots advanced mechs to protect a high school girl tied to secret global conspiracies.

86 — Eighty-Six has 2 animated seasons and depicts a tragic war where oppressed soldiers pilot unmanned combat robots, exposing the cruelty of discrimination, sacrifice, and modern warfare.

Knights of Sidonia has 2 animated seasons and is a dark sci-fi survival story set in space, where humanity fights alien monsters using mechs while clinging to extinction-level hope.

Getter Robo has 3 animated seasons and is a classic super-robot story about pilots who combine multiple machines into one powerful robot, setting the foundation for transformation-based mecha storytelling.

Mazinger Z has 2 animated seasons and tells the story of a young pilot controlling the world’s first giant robot from within, establishing many of the core tropes that define the mecha genre.

Eureka Seven has 2 animated seasons and follows rebellious youths piloting sleek robots that surf through the sky, mixing mecha combat with themes of love, freedom, and self-discovery.