suppermariobroth:In the Forest Fortress in Super Mario World, it is possible to defeat a Grinder by
suppermariobroth:In the Forest Fortress in Super Mario World, it is possible to defeat a Grinder by sliding into it using the Triangular Block. Since Grinders are not supposed to be defeated, its sprite becomes glitched as it falls offscreen. (Footage recorded by me from a SNES emulator.) -- source link