Huge Fire Bar

Big Fire Bars are larger variants of Fire Bars that appear in New Super Mario Bros. U, and New Super Luigi U. They are twice as large as a normal Fire Bar.

New Super Mario Bros. U
Big Fire Bars first appear in New Super Mario Bros. U, where they are the main obstacle in Fire Bar Cliffs. They are also found earlier in the game in Slide Lift Tower.

New Super Luigi U
Big Fire Bars return in New Super Luigi U. They appear in Fire Bar Sprint once again as the main obstacle.

Mario Party: Island Tour
One Big Fire Bar also appears in Mario Party: Island Tour, it's found in the minigame Great Bars of Fire. It's slightly larger than the lower Fire Bar.