BMB, also known as BMB Oripa, is a Japanese online platform for playing “oripa” prize draws at any time of day. Users spend coins to play digital gacha games, with prizes that can include collectible trading cards, graded PSA 10 cards, and unopened boxes. The site highlights popular franchises such as Pokémon, One Piece, and Yu-Gi-Oh!, alongside a wider selection of products across categories including hobby items, designer brands, beauty and cosmetics, fragrance, electronics, household goods, games, and gifts.

Its catalogue features draws at a range of coin prices and with different formats and labels, such as limited-time offers, BOX prizes, and odds-based themes. BMB presents its draws with animated gacha effects and promotes its prize returns as a key attraction. The website also provides account registration and login, coin purchases, a membership ranking system, and information about features such as item combination and special gacha invitations.

Users can browse new arrivals and other listings, review terms and policies, and contact the service through its support pages