World 7-4 (Super Mario Maker for Nintendo 3DS)
From the Super Mario Wiki
World 7-4 is the fourth and last level of World 7 of Super Mario Challenge from Super Mario Maker for Nintendo 3DS. It revolves around the properties of Zigzag Lava Bubbles with wings on them.
Right from the beginning, a Big Zigzag Lava Bubble appears. After this, two Brick Blocks surrounding a ? Block containing a Super Mushroom. Next are 5 regular sized Zigzag Lava Bubbles then a Buzzy Beetle Shell. After this, four regular and one big Zigzag Lava Bubbles. After this, a Bridge with 6 Coins forming a pyramid. After this is a hall going up with Zigzag Lava Bubbles and one Big Zigzag Lava Bubble along it. After this, 3 Pipes with Zigzag Lava Bubbles coming out and some Brick Blocks blocking a Big Zigzag Lava Bubble. After this, a Checkpoint Flag with a ? Block containing a Super Mushroom near it. After this, four Zigzag Lava Bubbles and one Big Zigzag Lava Bubble. After this, another room. A big Zigzag Lava Bubble is above, but can't get through due to Donut Blocks. There are 8 Pipes with three Zigzag Lava Bubbles and a free Big Zigzag Lava Bubble. Up higher is another Big Zigzag Lava Bubble trapped in its area. The path splits for a bit. On the lower path, there are 6 Pipes containing one Zigzag Lava Bubble each. On the higher path, there are 6 Zigzag Lava Bubbles and 2 Big Zigzag Lava Bubbles on a track, though the second Big Zigzag Lava Bubble is on a square track. The paths merge and Bowser appears, but the player can jump over him and hit the axe.