World 1-1 (Super Mario Bros. 3)

World 1-1 is the first course in Super Mario Bros. 3. The course takes place in the game's first world, Grass Land, and is designed to introduce players to the Super Leaf power-up that transforms Mario or Luigi into a flying raccoon.

Overview
The level is largely plain-based and features common enemies like Goombas and Koopa Troopas. This level also introduces the Super Leaf, which transforms Mario into Raccoon Mario.

The level begins with a Goomba walking towards the player. Continuing forward reveals a Venus Fire Trap (a normal Piranha Plant in the GBA remake) lurking inside a pipe, along with more Goombas and Koopas. There are two ? Blocks in this area; one contains a Super Mushroom, and the other contains a Super Leaf. After this is a stretch of flat land, with two Goombas and a red Para-Goomba. The player will then encounter more platforms, some holding Koopa Troopas. They will also come across a stack of Brick Blocks; one of these blocks holds a Switch Block. Finally, they will then eventually reach the goal.

In the area of flat ground with the Goombas, the player can get a running start as Raccoon Mario and fly upward; this will take them to a secret area made up of clouds, with a ? Block containing a 1-Up Mushroom. Running and flying further past this area will take the player to a very tall pipe; inside is a bonus room with coins in the shape of a large 3. The pipe leading out of this room will take the player outside, right next to the goal.

Trivia

 * World 1-1 is one of 10 courses in Super Mario Bros. 3 to be featured in amiibo tap: Nintendo's Greatest Bits.

Mondo 1-1 (Super Mario Bros. 3)