My own Mario exe if you will based off the glitch in smb where you would get hit by bowser and touch the axe at the same time, you would change forms in reverse, big mario was first, you would get the mushroom and become small mario, then you would get the fire flower and get small fire mario which was glitched as there was no sprites for him throwing fire balls, so half of the big mario sprite would be on top.
Vector - By @FoxenFluffieSky Game and Character and Music - By Nintendo