Higan is this short experimental anime that's basically about a soldier dying in a hospital bed. The whole thing happens in his head, you're watching his final thoughts as he relives this brutal battle, with all these intense combat scenes mixed with quieter, more emotional moments.
It's super short, but the visuals hit hard. There's a lot of dark, nighttime warfare stuff, explosions, mech suits, all that, and then these eerie quiet moments. There's barely any talking, which makes it feel even more intense. It's all about the contrast between the chaos of battle and the silence of death, and it gets you thinking about how fragile life is and how memories just... fade.
It was made as part of some experimental animation collection, and honestly, it's pretty out there. Don't go in expecting character arcs or a clear story, it's more about the feeling and the atmosphere than anything else. But if you're into avant garde anime that's more about the experience than a traditional narrative, it's worth checking out.