as the magic of seeing cute drawings of cute girls fades, the clunkiness of the fully-random-piece-generation leads to an unfulfilling adventure mode, albeit with a cute improvisatory twist. a variant has to effectively extend itself from tetris AND stand successful by itself; this accomplished neither. but puzzle mode! you adopt a little chibi explorer and drag her down to hell on purpose? puzzle mode clearly had more work and time put into it, and its richness shines in character design, branching paths, alternate endings, and an interestingly diferent way to approach tetris: spot-crafting your stack to create a particular hole with height and garbage restrictions. in a sense, it's like cheese race the game. if you don't know what cheese race is, i can't help you; but maybe tetris plus 2 can.