Watch this. The mechanics of space debris combat, the precise weightlessness of the mobile suits, and the realistic depiction of pilot ejection systems are unmatched.
Contrast this with Daryl Lorenz, the Zeon sniper. Daryl fights in silence, mostly because he has to. He is a pilot of the Living Dead Division—soldiers who have sacrificed their limbs to better interface with their mobile suits. Daryl does not fight for a thrill; he fights for a connection to his humanity. He listens to a song, but it’s a fragile, crooning ballad sent to him by a disabled woman back home. It is a reminder of what he has lost. While Io uses music to dominate the environment, Daryl uses it to remember he is still human. mobile suit gundam thunderbolt december sky
If you are a newcomer to mecha anime who thinks the genre is about "kids shouting and laser swords," this movie will shatter that expectation. It is a 70-minute suicide note written in beam rifle fire. Watch this