Super Note Block
From the Super Mario Wiki
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Super Note Blocks (formerly known as Magic Note Blocks or Red Jump Blocks) are objects derivative of Note Blocks that appear in Super Mario Bros. 3 and Super Mario 3D Land. When a player presses the jump button just after landing on one, they will ascend into a Coin Heaven. In Super Mario Bros. 3, where they are pink, the player simply must follow a trail of coins to the end. In Super Mario 3D Land, where they are twice as long, have a white note instead of black, and flash a rainbow of colors, they usually give the player a Super Star used to run through a group of enemies, or a platforming section that requires use of the 3DS's stereoscopic 3D, in order to receive a Star Medal at the end.
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