The Slenderman was genuinely confused. Just how and why did he end up in this bizarre pitch black area? That would be something to ponder about... if not for the sudden appearance of several different shaped, very colorful blocks. The Slenderman was quick to dodge out of the way, but he was left pondering as to why these blocks just appeared.
He had no clue that these were Tetris blocks. And he had no idea that he was actually in a game of Tetris at this very moment.