this was created by me, with music credited below. turns out it is REALLY HARD to make a 2-minute-long animation
https://www.youtube.com/watch?v=UZMB893VjAk&list=PLvXMARe51eeZSIlPAuGXS2p5DnRYCk01X&index=12&ab_channel=MaxGalactica (克JOU気MACHINE甲 - Kabaneri of the Iron Fortress OST - Hiroyuki Sawano)
