Maybe my favorite arcade rhythm game now. The tactile sensations of moving your characters and slamming side buttons to the beat while switching hands constantly is a joy. I ended up playing it in over 10 prefectures lol
still shocked my local arcade managed to nab one of these. basically someone at SEGA thought it'd funny make a rhythm game (very hard genre) that's also a bullet hell (also very hard) and then attached a gacha system with printable cards that makes it impossible to support outside of japan. it's playable without the card printer, thankfully. pretty fun, especially when you're smacking the lever around. don't really care for the visual novel elements though; feels like Project SEKAI but not as fleshed out.