A cheap trick.

    I didn't come across any other glitches, but I found a trick to get All stickers and cds in Super smash Bros. Brawl. Go to vault. Go to Stage builder. Make a stage where there is only treads lead into a wall, but be sure that there is a tread on top of the wall. For example make a stage of treads that move left into a wall (be sure there is not space between the wall and the treads). Right on top of the wall put a tread that moves to the right.   ( be sure there is not space between the wall and the tread). After your done with the map, leave the go to group then to brawl ( this works where there are two human players, no cpus, they'll mess you up.) Pick and character that can chain attack for a standard attack. 2p can be anybody. Then go to Rules on top left.Turn the rules to 5 stock. Go to item switch. Turn everything off and only leave the Sand bag on. Start the match, go to the custom map that you just made.Both 1p and 2p will be moving to the wall.When sand bags spawn they move to the wall to. Be sure to be at the wall so the sand bags come to you. Chain attack them so that stickers will drop, since all other items are off. Keep this up and you'll have all the stickers. Sadly Cds don't come out, you have to move around the map to pick up the cds.

And that's the trick.