Demo 7 at either the end of the Star Road or at the end of Bowser's Valley. It is unbeatable and death will ensure after entering it without the Game Genie code for a keyhole to activate. A Concept art of Wendy O. Koopa from Super Mario Bros. 3 is in the background and Mario dies above the screen because of the lava that is located there, viewable in Lunar Magic. To get past this inconvenient level and go to the unfinished Finish! Bowser Keep or the old Special Warp Star, use Game Genie code 7E143401 in your Emulator.