Okay I noticed people other than myself have gotten stuck in this, well there is a video for those who haven't and it explains what happens. It is on YouTube and it is also kinda long but hey thats MASTERLINKX for you! Anyway heres the link and make sure that you don't get caught in this.
Why couldn't I have fond this before I got here???
Brawl Punching Bag
Spoiler Alert!BrawlFC: 0173-1027-1103
Xbox LIVE: M3KAMonsteroid
PSN ID: Monsteroids