Install Priiloader

Launch "Priiloader 236 Mod" via the Homebrew Channel
After the Priiloader Installer loads, press + to install it.
After successfully installing Priiloader, access it by powering off the Wii, then powering it back on while holding reset until you see the Priiloader menu.
You should install some system menu hacks now (by going to System Menu hacks option).

RECOMMENDED HACKS

• Block Disc Updates
• Block Online Updates
• Replace Health Screen
• Move Disc Channel

The priiloader menu is white by default, you can change it to black in the Priiloader settings if you prefer.

One of the special functions of Priiloader is that it can autoboot any app/file instead of the system menu. Some apps (like crazyIntro) can't be used without it.
For details on how to do so, visit www.sites.google.com/site/completesg/system-hacks/priiloader