Level 3-5 (Mario vs. Donkey Kong)
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The first area has rising lava the player needs to avoid as they climb up the stage. Past the first moving lift is a couple of platforms with a 1-Up Mushroom, followed by two more moving lifts. After the third lift is the Key, which the player needs to carry back across the two lifts and continue upward. Riding across a sideways moving lift, the player then has to use a Springboard to reach platforms that lead to the locked door.
In the second area, there are two Firebirds that fly around the bottom half of the area. The player first needs to ride a Kurasshā up to reach a platform, and then ride another Kurasshā to reach a pair of ropes the player needs to climb. The player can then ride the next Kurasshā upward to reach the Mini Mario.