I'm already stuck in Hiden Inyou Kikouhou: Ca Da. The difficulty curve is insane. There's definitely some gameplay tricks where you have to take advantage of the game mechanics to make moves you normally wouldn't think of but I tried finishing level 3-5 for about 45 minutes and I'm completely stumped. :(
This guide may take me a lot longer than I thought it was going to if I'm having this much trouble just at the half way point.