on level 2000 to rescue sonic the only thing that destroys the cage that sonics in is to throw marios hammer.to find mario hammer power up its in this red pipe. in the red pipe is bowser junior and you haft to battle him for the 100th time. once you have knoked out bowse jr he gives you hammer power up and you can save sonic. once the compleated the game (thats 9,000 levels) youe unlock the pet store,the arcade,the 1000 minigame palace and the desiger temple were you get to make your charicter,your power up,basicly you can design every thing ENJOY
