Behind Chain-Comps Gate
Ok, there are two ways to win this star. The easy way is go to into the painting as Luigi. Jump, and hit the red ! Box and become ivisibal by grabbing the power flower. Run very fast over to the chain-chomp and go through the bars and collect the power star. If you have not unlocked Luigi yet go in as Mario. Then run over to the chain-chomp. Ground pound three times on the post he is chained to and he will run around for a minute then smash the gate and dissappear. Run over there and collect the power star! Have fun and I hope I helped!
Added by: toralei150 Aug 19th 2012, ID#17322