Super Mario Bros 2 Allstars Glitchworlds

If you use the potion to cilp through the floor in 1-1, die on birdo, game over and clip again you get into an weird glitch world which is a mix between 1-1 and 1-2. In 3-3 you can do the glitch by entering a door before the screen scrolled up and then scroll the screen back down. This glitchworld is a mix between 3-2 and 3-3.