The player starts on one of six small metallic saucers that have some Goombeetles, Star Bits, and Blue Star Chips that the player needs to collect in order to create Pull Stars to the reach the Launch Star up high. The Launch Star will send Mario to a larger saucer with a defused Jump Beamer that will send Mario up to another saucer above. Spinning on the large screw on top will activate all the defenses of the Battlerock and start moving the saucer Mario is standing on, which is surrounded by Amps. As the saucer moves, the player has to dodge incoming fire and Electric Fences while moving between the top and bottom halves of the saucer. Touching a ? Coin will cause the rockets to send out a trail of Star Bits. At the end of the line are two larger saucers with cages, Mini Goombas, and Bullet Bills. Guiding the Bullet Bills to a cage will cause the cage to break, allowing the player to collect the reward within. One cage contains the mission's Power Star.
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