That intriguing, frustrating puzzler of a room is back again, with The Room Two making its debut on the iPad. The storyline is simple: a mysterious scientist has left you a series of cryptic clues that you must solve. The puzzles are tough, but not too much, and it's all set in a beautiful 3D world. The game markets itself on being easy to start and hard to put down, and it certainly lives up to that claim. You'll find yourself trying that puzzle just one last time (and another last time, and another) until, before you know it, hours have passed and you're still glued to the game. The Room Two doesn't have quite as many chapters as the original, and that can be both good and bad: you get through it quicker, which means you might just pay attention to your family and friends. Still, a few extra puzzles wouldn't go astray, if only to keep the experience going that little bit longer.