Well I haven't played it a whole heck of alot but the game is one that had TONS of potential but was rushed out the door. Some areas are extremely unpolished and feel thrown in for variety such as the terrible platforming elements with the kids. The visuals are clunky with some hideous textures, along with mass pixelation, but the level designs are quite abstract and even creative, at least visually. The boss fights are creative, and fun. In regards to the weather, it appears you can only utilize it in the creation mode where you make your own area (which is quite limited). Can't say anything about multiplayer.