Put this clip at the start of a launch sequence, then follow the success moment with the yaaaaaaaay cheer to close the scene, or swap that second slot for a bruh button when the attempt fails instead.
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This is a 13-second clip of Sérgio Sacani shouting 'vai filhão' in Portuguese, his voice loud and drawn out as a cheer. It feels encouraging and funny at the same time, like a proud dad urging someone on before a big moment. It comes from Sacani of SpaceToday.