(The description was copied from the readme but I think it's actually a lot more like Solomon's Key 2 aka Fire 'n Ice.)

If you use the level editor, levels should be saved to .magicor/levels and file names should end with ".lvl".

Known issues:
Some levels are really slow at least on a CC Pandora. (Most levels I tried are playable though)
Going back to the main menu from the file selection menu usually crashes the game.

http://boards.openpandora.org/topic/16614-magicor/