Deceptively well-designed! I don't know how much of this game's brilliance comes from Taisen Puzzle-Dama (a series I know next to nothing about) and how much comes from its specific identity as a TokiMemo spin-off, but boy do these two properties work surprisingly well together. The general gameplay loop - falling blocks, match 3, you have to "unlock" the small blocks before you can match them - lends itself very cleanly as an analogue to TokiMemo's bomb system: if you're not careful, you can very easily let the opponent set up a powerful, devastating combo that blows the rest of the match. But there's a lot of neat metatextual stuff, too, like how each playable character has a different pattern for "garbage" blocks with Shiori's as the hardest to use, as well as how the final match works in the arcade ladder. This is in addition to very fun animation and voice acting that adds quite a bit to the original game's lively cast, particularly establishing relationships between the girls.

Even though I can't understand Japanese, it's nice to learn new things about these characters, like how Yuina brandishes jumper cables and will throw hands when she gets annoyed.