I would have to agree that all the Wario Land games are pretty damn good. With the exception of the DS title.

The stylus detection is awful. The player has to try and draw these different shapes next to Wario's head. Usually ends up just making whatever it wants. Becomes hard when you have to draw to different shapes quickly back to back to solve a puzzle or defeat a boss. The mini-games to open the chests are a joke as well. I became pretty good at it after much practice.I agree with a review I read somewhere that the game feels/looks like a weird euro platformer. I tried to make myself like it.

The first title is my favorite with all the hidden treasures and the ending that depend on the cash collected.