This game totally caught me by surprise. It started with a cliche about saving the world and I thought it was going to be one of those dull sci-fi plots but as the story progressed, a lot of issues were explored with regards to that theme. The costs and consequences of our actions on the environment, the triggers needed to make us change our habits, and the ethos of different minded-individuals were questioned. The dramatics were well played out; the soundtrack compliments each scene perfectly, the build-ups to climatic events were exciting, and the graphics were outstanding in their details -- the images used had the right angles and impacts on the viewer. The game mechanics are simple, based on interactions with the environment through point-and-click. The challenging part of the game is more of its mental aspect. You have to use a bit of logic and maintain a lot of awareness of your environment or else you will miss out items or tasks integral to the story's progress. What I really like about this visual novel is its comic-styled graphics. It's like seeing a comic book played out in motion to you during its cut scenes and it places you in the comic book world when you are playing the game. Aside from a few subtitle errors and delays as well as frustrations that come with figuring things out, this game is a great puzzle action game. Also, it helps that you can skip some of the mind-boggling puzzles. You can get Steam achievements out of succeeding them as well as skipping them. Is it replayable? If you are an achievement-♥♥♥♥♥, then yes, there are things to play for so make multiple saves at various points if you do not wish to go back to the beginning all over again. If not, once is enough, which is about the only other discouragement from getting the game.