Super Mario World: Super Mario Bros. 3 Style Hack - Red Switch Palace
A Koopa will enter the yellow shell then home at you. Press the P Switch to turn the hard blocks into coins. Let the shell follow you and knock out the other Koopas in the room. Finish the process by spin jumping on the homing shell for an extra life. Enter the pipe then hit the big red switch to turn all the blank red blocks into hardened blocks.
