I have tested all the Flash control buttons with Learning Mode and discovered the following:
First and foremost, none of these buttons can be used to hack the game, so I see no reason that the discussion of this knowledge should be frowned upon. Likewise, only one of them can really be used to your advantage while playing. Still, I believe it is interesting to note what will happen if you click them. All buttons can be accessed from the right-click context menu. I do not advocate the use of any of them.
Play: Uncheck it and the game will pause (everything will freeze in place). Check it again and the game will continue from where you left off. This can be used to capture a screenshot or get a good look at the screen without a huge dialog getting in your way.
Loop: No known effect on gameplay.
Rewind: Will freeze the game. Upon click of Play or Forward, will go back to the loading screen, thus making you lose your

.
Forward: No known effect on gameplay.
Back: Will produce a frighteningly red screen and a "horrible error" message (Flash's words, not mine).