Super Mario - Some enemies can be turned into others when hit from below

In Super Mario Bros., some enemies can be turned into others when hit from below while 14 to 18 pixels away from the left edge of the screen. A Goomba will turn into a dead red Koopa Troopa; however, a Spiny will turn into a green Koopa Troopa and remain alive in its new form. pic.twitter.com/2wFk8Cc1fM

— Supper Mario Broth (@MarioBrothBlog) March 1, 2022