We played leapfrog in the schoolyard during recess.
Common kana-mixed spelling, often used in children's contexts or when the kanji 跳 is considered difficult.
Variant using 飛; less common than 跳び for this word.
Compound of 馬 (uma, 'horse') and 跳び (tobi, 'jumping'), from the way players resemble a horse when bent over.