Honestly I'm stuck at the second room, but what little I saw is absolutely great. The art is adorable, the premise is very in the theme, the writing is top notch, and gameplay is actually fun, if only I could solve puzzles.
A quick hint for that room and several others: Nitori can move freely over pits as long as she's holding on to something solid, so it's all about what you're grabbed on to and what direction you're holding it from
