If you want to pass the time playing puzzles, then try out Crack Attack! It's a game similar to that of Tetris and Columns. The gameplay is actually pretty easy but at the same time is also provides enough of a challenge to make it fun. If you are looking for something to pass the time. The main objective of the game is simple enough. Line up at least 3 similar colored blocks together and they disappear. Of course, it has personal quirks and challenges to keep you on your toes while having fun. So why not check it out?