Released: October 2007
Developer : Michael “Kayin” O’Reilly
I Wanna Be the Guy: The Movie: The Game (IWBTG) is a 2D platform indie freeware video game created by Michael “Kayin” O’Reilly for Microsoft Windows using Multimedia Fusion 2. First released in October 2007, the game is not in active development despite being listed as a beta, though the source code for the game was released by Kayin in November 2011. IWBTG is mostly known for its unusually difficult platforming elements, unorthodox level design, and its utilization of sound effects, characters and music from many other games.