Level 1-2 (Mario vs. Donkey Kong)
The player starts under some ladders; above the first is a "Help" block explaining how to enter Free Scroll Mode. At the top of the ladders are two Shy Guys and a Hammer, along with the red and blue Color Switches. By having the red switch activated, the player can climb down to reach another Hammer to destroy a floating Oil can and grab the Key. By jumping on the blue Color Switch where the Oil can was, the player can jump down to the locked door below.
In the second area, the player again starts under some ladders. Above the first ladder is a Trash Can and a Springboard. On top of the ladders are a Shy Guy, two Fireballs, and a Hammer that can be used to defeat them, along with a 1-Up Mushroom above the Fireballs. Falling to the platform below and using the ladder to climb further down, the player can use another Hammer to defeat the Oil cans, and then climb the ladder to reach the Mini-Mario.