Japanese

Noun

割り玉 ‎(hiragana わりたま, romaji waritama)

Decorative ball (割り玉) opened to reveal a banner reading 祝アーケード完成 ("Celebrating arcade completion")

1. A type of くす玉 ‎(kusudama, “decorative ball”) that splits open to reveal a banner, confetti, or balloons.