I haven't finished the demo yet but I would still like to post my review.
This is silly and sweet and cute and sometimes hokey and all the things I don't look for in a HOG or HOPA. But this is M3. I have had so much fun playing this game!
It's not as easy as it looks. I have failed a level two times in a row and I still have not managed to pass it. I'm not a great M3 player but I know a little bit about strategy - evidently I don't know enough. And that's OK.
I really like the little games in-between the M3 games. I like the storyline. Who wouldn't like rescuing sweet little puppies from evil aliens?

Bad aliens! Leave those adorable puppies alone!! Shame on you all!! Grrr...
Game play is pretty smooth - it could be better but that is a small complaint.
Hints are unobtrusive - they are not pushed on me; when they are I get annoyed and hints showing up when I'm trying to concentrate and haven't made a move for two seconds is often my greatest gripe with some M3 games. Please don't give me a hint unless I ask for it!! No complaint with this game. The hints are given but they are not "in my face".
I love being able to move tiles diagonally. I've never seen that before so I'm not used to it and I need to learn to look for opportunities to do it.
And I have to admit that I love playing with the puppies and buying them toys and things. I haven't renamed any of them yet but I will. And I will change the sanctuaries and do all that stuff.
I even like the music - it reminds me of "Old Mother Leary left the lantern in the shed" - whatever that song is called.
I put the game at the bottom of my "to buy" list.
And then my border collie Keenah

made me buy it now, right now. She likes to hear the barks and yips. I just can't tell her "no" so I purchased the game. I wonder if she would like to play with bubbles. I happen to have a wand for soap bubbles somewhere so I'll find out.
So Keenah and I will be rescuing these sweet puppies from those nasty aliens and having a lot of fun doing it.
I highly recommend this game!!
Thank you BF

for offering this game!! I haven't tried Kitten Sanctuary but I have five cats so I have the feeling that I will be purchasing that game, too.
Happy rescuing, happy gaming, and Happy Halloween!!
Edit: Adding a P.S.: "Woof!" That's from Keenah, along with a paws-up.