I found a way to transform Luigi's Mansion into Sonic 4.﻿

Inspired by https://www.youtube.com/watch?v=aezmqOPi8MY.

HOW TO DO DIS RANDOM THING?

 * Complete Luigi's Mansion until Area 3.
 * Save your game then go to the Foyer.
 * Go to the Laundry Room then go back to the Foyer.
 * Do this 3 times.
 * After the 3rd time, the Toad will have a Sonic costume.
 * Talk to the Toad and save your game again.
 * Go to the well and something will happen there.
 * The picture of Mario will turn into Sonic.
 * Continue your journey until you complete Area 4.
 * After defeating King Boo, go to the Sonic picture and go through it.
 * And voila! Your Luigi's Mansion game has transformed into Sonic 4! Enjoy! (or not)

HOW 2'Z TRANZFORMZ BACKZ 2'Z LUIGI'Z MANSION

 * Die in any stage with 1 live left.
 * Congrats! Your Luigi's Mansion game is back! Plus, your game is saved!

Tips

 * Save your game AT LEAST 2 times or else the game cannot be saved when you transform it back and you will have to start all over again.
 * When you complete Sonic 4, you cannot transform the game back to Luigi's Mansion unless you complete Splash Hill Zone.
 * Update your Luigi's Mansion version to: Sonic's Mansion 4.luigi.
 * Don't perform any glitches in Sonic 4 or else your TV will explode. KABLOOKA!
 * Have fun! (And again, or not!)