5-9

5-9 can refer to the following:
 * World 5-9 from Super Mario Bros. 3
 * Level 5-9 from Mario & Wario
 * Stage 5-9 from Donkey Kong for the Game Boy
 * Wavy Beach 5-9 from Super Princess Peach
 * Room 5-9 from Mario vs. Donkey Kong 2: March of the Minis