I received this game for Christmas and I'll admit I thought it was one of those cheapy games that I'll play for a few minutes and toss aside. Besides Henry Hatsworth, I also got Harvest Moon: Frantic Farming and Populous. I tried HM:FF and got bored of it within minutes since all you do is move tiles around to create chains or whatever. I have not taken the shrinkwrap off Populous yet for fear that this game will be the same.
However... Henry Hatsworth... This game is difficult yet addictive. I think at first glance, a lot of people will assume it's a puzzle game but it's not. It's more of a Mario game but you have to switch to a puzzle format in the bottom screen to move blocks around and make matches. You can't ignore the puzzle because the monsters you attack in the top screen will fall down and become a block. If you don't take care of the monsters in the puzzle screen, they'll come back to haunt you in the top screen as a difficult flying block.
I was having fun with this game until I hit level 3-6 which is a boss named The Captain. He's this really old man who has a huge nurse which uses him as a weapon. Pretty hilarious but it wears off fast! I did finally beat this level and now I'm slowly, very slowly, working through the Puzzle Realm. It's a little difficult but the levels are extremely long. When I die a few times, I just turn the game off.
I think ultimately I won't be able to complete this game. The addictiveness long wore off when I was stuck dealing with the Atlantia Boss. Still fun though... to some degree. ;)