The Beginning of the Adventure is the first world of I Wanna Be The Guy. This world features 2 enemies: a Snifit (armed with a Bullet Bill Launcher) and the first iteration of The Moon, but there are numerous traps. This world also is the most open; there are more paths in and out than any other world. The boss here is the Punch Out champion, Mike Tyson, who can be reached by taking the upper path into the sky. The music that sounds in this world is "Home Sweet Grave" from Guilty Gear Isuka.