4-2

4-2 can refer to the following:
 * World 4-2 from various games
 * Level 4-2 from various games
 * Stage 4-2 from Donkey Kong for the Game Boy
 * Fury Volcano 4-2 from Super Princess Peach
 * Room 4-2 from the Mario vs. Donkey Kong series
 * Chapter 4-2 from Super Paper Mario
 * Area 4-2 from Mario vs. Donkey Kong: Mini-Land Mayhem!