In the game Peach is once again kidnapped by Bowser and you have to rescue her. Before you get to Bowser's castle you must collect four keys to open the gate to Bowser's castle. These four keys are guarded by four bosses in four different lands. Boss: Big Boo Location: Haunted House in the Carnival Stars Required: 10 Difficulty: 3/5 Big Boo is located in the deepest room of the haunted house. Just like in "Super Mario 64" you must hit Big Boo on the back when he's not looking. If you try to hit when he is looking he will guard and Mario will be spooked, spinning out of control. Hit Big Boo on the back three times and he will be defeated. After that collect your key. Boss: Petey Piranha Location: Windmill in the Grassland Stars Required:1 Difficulty: 2/5 Petey Piranha is the easiest boss in the game. After you hit the blue switch, stopping the windmill it will be easier to enter. When you enter you will find Petey Piranha in the center. All you have to do is hit Petey Piranha three times, but not in the center. If you hit him in the center (in his face), he will trap you in his mouth and spit you back out. Be careful that he doesn't spit you out of the windmill. Hit him three times and collect your key. Boss: Spiked Cheep Cheep Location: Sunken Ship in the Ice Land Stars Required: 1 Difficulty: 4/5 To get to this boss you must hit the three treasure chests and go inside the sunken ship. To damage the Spiked Cheep Cheep you will use bomb-ombs. There are targets on each side of the ship. If you hit one you will release a bomb-omb to use on the boss. If you hit the Cheep Cheep with the bomb-omb the Cheep Cheep will expand like a blowfish. Hit the Cheep Cheep again before it goes back to normal size. The Cheep Cheep will separate into more Cheep Cheeps. Hit the Cheep Cheep three times and collect the key. Boss: Pharoh Koopa Location: Pyramid in the Desert Stars Required: 2 Difficulty: 4/5 The Pharoh is at the very bottom of the pyramid. Beside the Pharoh are two crystals. These crystals will make you bigger, but the Pharoh will cast spells making you smaller. You must hit the Pharoh three times while being bigger. When your're done collect the key. After you've collected all keys you will be ready to challenge Bowser Difficulty: 5/5. I can't make a guide on Bowser because I didn't beat him yet.