Blue World is a great sequel: There's lots more to see and do, with refinements all around, from graphics to gameplay. It's what anyone would expect, after all. But all of that comes part and parcel with some flaws. More background music would have been nice, as the game is oddly silent compared to the first, and keeps "epic" music cues to a minimum. Similarly, there's no longer a way to select music freely, or add your own via files from an SD card. Regardless of those little things, Blue World's still well worth picking up for anyone attracted to going on some aquatic adventures, especially if you missed the first game.