Fun presentation with the voice acting. Sadly I can get past the first puzzle. I type "new_sprite" the "code accepted" lights up green, but pressing escape doesn't seem to do anything and I can't manage to progress any further.
Ah, I see the problem that we kind of overlooked. For these puzzles you go between the normal world and the "backstage" so after solving the code puzzle you'd use the tree to go back to the normal world to progress.