(Game + extra credit + soundtrack + extra special appearance)
After completion of the game, you will receive up to five hand-written letters from Wendy, over the course of three months, detailing major life events after the game ends. You can write back to offer her advice, which will affect the decisions she makes.
This exchange will be published online after it ends, though your responses will be fully anonymized (typed out and any identifying information removed).
Everything from the previous rewards (except "Writing on the Wall #1 & 2").