World 5-4 (Super Mario Bros.)

World 5-4 is the fourth and final level of World 5 in Super Mario Bros. and the twentieth level overall in said game.

Layout
World 5-4 is similar in layout to World 2-4, but with additional Fire-Bars and Podoboos.

The player starts at the top of some stairs that lead to a pit of lava with Podoboos jumping out and platforms placed above it. Above the center platform is the only ? Block in the level, containing a power-up, and the platform also has a long Fire-Bar that can reach the other surrounding platforms. After the lava are two paths lined with Fire-Bars, with the bottom path having more than the top path. Next are two lifts moving in opposite vertical directions with Fire-Bars on both sides, followed by some gaps and Podoboos before coming to the fake Bowser, which breathes fire as the player is jumping across the gaps.

Super Mario Bros. Deluxe challenges
In Super Mario Bros. Deluxe, the player can collect five Red Coins, find a hidden Yoshi Egg, and get a medal based on their score. The Yoshi Egg is found in a Hidden Block against the wall directly after the lifts, and the score to beat is 13000. The Red Coin locations are:
 * To the right of the ? Block, above the gap
 * In the top path
 * Between the lifts
 * Under the Fire-Bar after the lifts
 * In the third Brick Block from the right above the fake Bowser

Level map
Mondo 5-4 (Super Mario Bros.)