Ok,
First make a folder called code manager.
Then download this:
http://www.mediafire.com/download.php?ldgrtkyzyzjsave that into the code manager folder
Then download this:
http://www.megaupload.com/?d=GMMN79UCextract all of that into the code manager folder
Open the code manager app, go file--->Open txt file
open Brawl+.txt
The second code should be level freezer. Click it then right click it
and press delete all selected.
Then select the checkbox next all of the codes. Press store modifications
Put your sd card into your computer, go back to code manager, at the
bottom press export to gtc, set it to your sd card, and press store.
Your done!
Alternatively, I already did it for you:
Go onto your sd card and into the codes folder, replace the file in there with this one.
http://www.mediafire.com/download.php?2aomqoyyy0j