Kasagake' (笠懸) is a traditional Japanese form of horseback archery technique/practice/event/form where the archer mounted on a galloping steed shoots 'Kaburaya' arrows (arrows that whistle) at targets.
笠懸（かさがけ）とは、疾走するウマ上から的に鏑矢（かぶらや）を放ち的を射る、日本の伝統的な騎射の技術・稽古・儀式・様式のこと。