i found this awesome game a long time ago (1 year). and now the author will let you create custom levels. i suggest playing it. maybe when you get the chance pm me with a good level. here's the link.
game:
http://www.dzarchive.com/iragination/clips/bassabyss/
level editor:
http://www.dzarchive.com/iragination/clips/bassabyss/level-editor/