Redoing the level editor a 3rd time, so if you're here and interested in the game, then yeah:
Everything is fine up to the test game part, I keep thinking of just not including this feature since it seems to bugger up the level editor, however I script it.
The problem is it's a pretty important feature, as I don't want people to get level codes until they've proved the level is possible, which they must do by beating the level themself.
It caused problems for a few months now :).
I decided to embed the preview into the post this time, thanks to Rob for implementing this awesome new feature :D!
.
/* */
Music by Soundshifter.