Bowser's Magma Mountain stage: Successfully complete the first six stages and collect 1000 coins. You have to buy things in the shop, including the key to the Magma Mountain, while playing in those six stages. After that, the Magma Mountain can be played. Get 1000 coins and you can buy the key. Eternal Star stage: Get 100 stars in the Magma Mountain stage. A special event will appear. The Eternal Star stage will appear after that. Special shop items: Successfully complete the Eternal Star stage. The ending sequence will appear. After that, special items can be bought in the shops. Alternate title screen: Complete the game with a character to feature that person as the main character on the title screen. Extra songs: Purchase the record from the Mushroom shop to unlock extra songs on the Bowser's Magma Mountain and Eternal Star stages. Hint: Get coins easily: Select three of the characters. Then, stop at the final round of game and turn all the CPU players into players 2P, 3P and 4P. All stars and coins may now be easily collected. Hint: Bumper Ball Mazes 1, 2, and 3: Complete Mini-Game Island by beating Toad at the Slot Car Derby 2 to get the first Bumper Ball Maze. Beat all 50 mini-games at Mini-Game Island to get the second Bumper Ball Maze. Set new records on both of those to unlock the third Bumper Ball Maze.