Oh cool, there are actually some Wario Land 2 maps now!

[CM30]

http://vgmaps.com/Atlas/GB-GBC/index.htm#WarioLandII

As in, more than just chapter 1. The link has maps for everything up to Syrup Castle now, with the secret levels presumably coming later.

It definitely makes you appreciate how much work went into the game's level design, doesn't it?

 

[Dumribble]

The Wario Land levels are truly timeless. I really enjoy 2's concept of different storyline level paths, some of them being pretty silly and/or creative.

 

[wariolandgoldpiramid]

Unfortunatly, these maps have the same problem as the old Wario Land 2 maps - most of the enemyes are not marked on the map.
This really annoys me...

 

[607]

Yeah, I saw those! It's indeed unfortunate that the enemies aren't displayed, though.