Pixel Puzzles: UndeadZ (why the Z? ugh) is basically a jigsaw puzzle videogame. I'm not too familiar with the genre so I don't know where this title stands in the great pantheon, but it's a solid way to kill a few hours.
This game is basically divided into three modes. There's the jigsaw puzzles, there's survival jigsaw, and menu zombies. Survival Jigsaw adds an element of danger. While you're trying to put together the puzzle, you also have to fight off the occasional zombie. There's a clock and when time is up a minor horde will attack. You earn cash via completing pieces of the puzzle, which can be spent on defenses, or to view the full picture. You also control some guy who can shoot or throw grenades at the zombies. It's a cute idea I suppose, but I'd rather focus on the puzzle itself.
Menu Zombies is an overhead shooter, that takes place on the main menu. It's basically a gimmick-mode, since you can best it simply by standing still and throwing infinite grenades at everything. There are achievements for killing 5,000 menu-zombies and staying alive for an hour. I spent 15 minutes in this mode, which is still far far far too much time.
Like I said, I don't own any other videogame puzzle...games(?) so I can't judge the overall quality of this title compared to others. I do however love me some jigsaw puzzles, and the convenience of not cluttering up a coffee or dining room table is a nice bonus.
For a "throwaway" indie bundle title, this ain't bad.