Oddly enough, if Mario touches the lava ceiling, he doesn't get hurt.The castle in the sky portion of World 5 has Mario traveling between two layers of lava, one on the ceiling (it's very hard to see in the original NES version), and convection STILL doesn't affect him.Convection, Schmonvection: In addition to the typical application of this trope (being able to stand JUST above lava without getting fried), there's also the fact that in the leftmost Hand Trap level in World 8, Cheep-Cheeps fly out of lava to attack you! (This is one of only two Mario games to feature this, and in the other, Super Mario Sunshine, they at least had the decency to make the Cheep-Cheeps in Corona Mountain charred black and on fire.) Also, in the remakes, all Hand Trap levels have the bottom half of the background glowing red.Color-Coded Multiplayer: Played straight in the original (where Luigi is just a Palette Swap), but averted in the remakes (where he's a separate sprite with unique proportions).She's able to send out her babies in a circular loop for an attack. Children in Tow: The Blooper Nanny has several Baby Bloopers following her.

Check Point Starvation: None of the levels in this game have Check Points, a rarity for a Mario game.

The Game Boy Advance remake bumps this up to 999.

Cap: Mario and Luigi can only have 99 lives.

The last transformation example also serves as an Early-Bird Cameo as well since the sprite for that transformation would later become Yoshi's main sprite in Yoshi's Island.

World 7: Pipe Maze: Piranha Plant -> Yoshi!.

World 6: Iced Land: Sea lion -> Monty Mole.

World 4: Big Island: Dinosaur -> Donkey Kong Jr.

World 2: Desert Hill: Spider -> Hoopster.

The Cameo: In the SNES remakes, instead of animals, the Kings of the different worlds are changed by the Koopalings into different enemies from past games.

Bubbly Clouds: The second half of World 5, and the numerous Coin Heavens.Also the melody to make the Wandering Hammer Bros.Bootstrapped Theme: Underground levels use a remix of the underground theme from the first Super Mario Bros.Bilingual Bonus: The treasure ships have 'treasure' written on their masts in kanji.Big Bad: Bowser as Mario tradition dictates, as well as his seven children.Many of them are notoriously difficult due to the many obstacles that must be traversed while keeping up with the screen. Animated Adaptation: The Adventures of Super Mario Bros.

Super mario bros 3 world 7 levels