Earlier this year, I started hacking Wario Land 2. Originally, I just wanted to hack it so that I could find all the hidden areas in the game since there are so many. Then, after seeing Drenn's Wario Land 3 editor, I figured that I could make a similar level editor from what I learned about the Wario Land 2 rom. The editor should have no problem working, but if you find any bugs please let me know. Any feedback is appreciated.
Download link on the utilities page:http://www.romhacking.net/utilities/1098/