Gainax's 1988 OVA follows an uncertain trainee preparing to pilot giant machines against an alien threat beyond the solar system.

Synopsis
The Anime Lad

Humanity prepares giant robots for a war against an alien threat approaching from deep space. The pilots are selected from training schools, where Noriko's uncertain ability makes her an awkward candidate for responsibility on this scale. Gunbuster places ordinary student insecurity beside military machinery and treats both as pressing concerns. Apparently adolescence required larger equipment.

Super Eyepatch Fox

An alien force moves toward humanity. Earth builds battleships and giant robots. Training schools supply the pilots. Noriko enters with a famous family name and little confidence in her own ability. Stronger candidates surround her. The machines demand discipline. The approaching war does not care whether she feels ready.

Gigguku

Noriko is surrounded by trainees who look far more prepared for a giant-robot cockpit, which makes every exercise feel enormous before the story even reaches deep space. Gunbuster takes school anxiety and bolts it onto humanity's answer to an alien threat. The machines are huge, but the immediate reason to care is one young pilot trying to believe she belongs there.

Father's Basement

A school full of teenagers training for an alien war is proudly ridiculous, and the military selection process raises obvious questions. Gunbuster gets traction from Noriko's lack of confidence. She is not introduced as an effortless prodigy. She has to stand beside stronger candidates while confronting machinery and expectations built on an absurd scale. That vulnerable starting point gives the 1988 OVA something sturdier than spectacle alone.