Disabled the angled panels for the first half of the puzzle, with a consequent reduction in the number of antlines. Added small observation window, and a couple of strip lights which make the exit door connection clearer.

Added more black surfaces to fix an exploit.

Made the angled panels retract while the fizzler is inactive, in order to force the player to use a method which works more consistently.

Made it impossible to respawn the first cube after getting it onto the button.