The current hacks used to require a game to run Homebrew.
However, it’s no longer needed to buy either Super Smash Bros. Brawl, a second hand Wii, or a crap game.
Since yesterday, you can use the Messages system to run Homebrew.
The new exploit is called “LetterBomb”, and runs on Wii Menu 4.3 of all regions.
The only thing you need to do, is filling out this small form, and you’ll get a message from the previous day.
Now put in your SD card, and click the special message, that’s it!
For more information: