Sburb.exe has a mystery hiding beneath the surface
In page 482 for 1 frame for every 30 seconds there's a Mysterious Shadow 
That's not the only mention of a secret unknown Character
In The Fan Poll there's secret texts on the "favourite character" poll
And on page 696 there's a Mysterious chumhandle at the bottom of Luke's Chumroll midnightMinuet and when put in as the username as FRAF glitch text shows up reading "You Remember Me Don't You?"
(I got these pictures from the wiki)
