The X captures a タンク, while a 三角木 swings into the frame. Everything that happens here is in the first person... i.e. you are X. Don't be scared, because everything is always first person... every view through a 望遠鏡, of 空白 skies or 重力 blinks or flaming comets or angel's 足(複) or flying saucers or exploding ancient 赤 galaxies that might not still be there... you are always X.