Same formula, same fun. I've played them all and keep doing so in the future. It's funny and entertaining. Just play with sound muted and blast some metal over it = win.
One thing I don't like about these games though, the facebook like that is supposed to double your score at the end of a level. Don't tell me it's 2015 you should have a facebook crap argument, fuck that. But since it's your game, you're free to do pretty much what you want after all, I don't mind the box urging you to buy the product every 10 turns but the facebook like is too much imo. Reading the comments, there are people complaining about the logic, rational side of the story. Fools, put your brain aside (if you still have one) when you play these games. It's a freaking game about rolling over undeads.
Finished it in 36 days.